1. Effect of Hydrogen on Tensile Shear Strength of Spot-Welded Ultrahigh-Strength TRIP-Aided Martensitic Steel Sheet 査読有り

    Tomohiko Hojo, Akihiko Nagasaka, Ryusei Wakabayashi, Motomichi Koyama, Chihaya Tabata, Yota Kondo, Kazuma Ogasawara, Yuki Shibayama, Eiji Akiyama

    ISIJ INTERNATIONAL 66 (4) 599-610 2026年5月15日

    DOI: 10.2355/isijinternational.ISIJINT-2025-039  

    ISSN:0915-1559

    eISSN:1347-5460

  2. Hydrogen Entry into Ni-Coated Steels in NaCl Solution 査読有り

    Hiroshi Kakinuma, Koki Okumura, Makoto Akahoshi, Yu Takabatake, Takehiro Takahashi, Tomohiko Omura, Saya Ajito, Eiji Akiyama

    MATERIALS TRANSACTIONS 67 (4) 494-501 2026年4月1日

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-c2025009  

    ISSN:1345-9678

    eISSN:1347-5320

  3. Warm V-Bendabilites and Hydrogen Embrittlement Properties of Ultrahigh-Strength Quenching and Partitioning-TRIP Steel Sheets 査読有り

    Tomohiko Hojo, Akihiko Nagasaka, Chihaya Tabata, Yuki Shibayama, Junya Kobayashi, Eiji Akiyama

    ISIJ International 66 (4) 611-621 2026年3月30日

    DOI: 10.2355/isijinternational.isijint-2025-048  

    ISSN:0915-1559

    eISSN:1347-5460

  4. Hydrogen Embrittlement of Hole-Expanded TRIP-aided Martensitic Steel Sheet 査読有り

    Zisong Guo, Tomohiko Hojo, Hiroyuki Saitoh, Ayumi Shiro, Takahisa Shobu, Ryo Yasuda, Saya Ajito, Motomichi Koyama, Eiji Akiyama, Fumio Yuse, Makoto Kawamori

    ISIJ International 66 (4) 590-598 2026年3月30日

    DOI: 10.2355/isijinternational.isijint-2024-381  

    ISSN:0915-1559

    eISSN:1347-5460

  5. Localized plasticity, transformation, and martensite cracking in hydrogen-charged metastable austenitic stainless steel studied by in situ electron channeling contrast imaging 査読有り

    Motomichi Koyama, Zhipeng Yang, Wenwu Xu, Eiji Akiyama

    Materials Characterization 233 116127-116127 2026年3月

    DOI: 10.1016/j.matchar.2026.116127  

    ISSN:1044-5803

    eISSN:1873-4189

  6. In situ 2D visualization of hydrogen entry into Zn-coated steels in NaCl solutions: Roles of Zn dissolution and potential distribution 査読有り

    Hiroshi Kakinuma, Saya Ajito, Koki Okumura, Makoto Akahoshi, Yu Takabatake, Tomohiko Omura, Motomichi Koyama, Eiji Akiyama

    Corrosion Science 258 113386-113386 2026年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.corsci.2025.113386  

    ISSN:0010-938X

  7. Prussian blue as a fully reversible hydrogenochromic material for visualizing hydrogen distribution in Fe sheet 査読有り

    Hiroshi Kakinuma, Yoshinori Sasaki, Saya Ajito, Motomichi Koyama, Eiji Akiyama

    ISIJ International 2025年12月4日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2025-340  

    ISSN:0915-1559

    eISSN:1347-5460

  8. NaCl水溶液中におけるNiめっき鋼板への水素侵入 査読有り

    柿沼 洋, 奥村 昂生, 赤星 真琴, 高畠 勇, 高橋 武寛, 大村 朋彦, 味戸 沙耶, 秋山 英二

    材料と環境 74 (11) 222-228 2025年11月10日

    出版者・発行元:

    DOI: 10.3323/jcorr.74.222  

    ISSN:0917-0480

    eISSN:1881-9664

  9. Strain rate dependency of hydrogen embrittlement resistance in an additively manufactured equiatomic CoCrFeNi high-entropy alloy 査読有り

    Virendra Kumar Verma, Motomichi Koyama, Mehmet Cagirici, Siyuan Wei, Eiji Akiyama, Pei Wang, Upadrasta Ramamurty

    International Journal of Hydrogen Energy 172 151340-151340 2025年9月

    DOI: 10.1016/j.ijhydene.2025.151340  

    ISSN:0360-3199

    eISSN:1879-3487

  10. Review—Polyaniline-Based Hydrogenochromic Sensor and Its Application for Visualizing Hydrogen Entry into Metals and Microstructure-Dependent Hydrogen Diffusion 招待有り 査読有り

    Hiroshi Kakinuma, Saya Ajito, Motomichi Koyama, Eiji Akiyama

    MATERIALS TRANSACTIONS 66 (9) 1095-1106 2025年9月1日

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-maw2025001  

    ISSN:1345-9678

    eISSN:1347-5320

  11. Corrosion and stress corrosion cracking resistances of laser powder bed fused and binder jetted 316L austenitic stainless steel 査読有り

    Yida Xiong, Wei Shi, Ting Zhao, Eiji Akiyama, Upadrasta Ramamurty

    Corrosion Science 252 112968-112968 2025年8月

    DOI: 10.1016/j.corsci.2025.112968  

    ISSN:0010-938X

    eISSN:1879-0496

  12. Factors controlling transformation-induced hydrogen desorption and hydrogen-reduced transformability in austenitic steels clarified via dynamic hydrogen detection during cryogenic deformation 査読有り

    Motomichi Koyama, Yifei Wen, Tomohiko Hojo, Saya Ajito, Makoto Kawamori, Eiji Akiyama

    Scripta Materialia 265 116749-116749 2025年8月

    DOI: 10.1016/j.scriptamat.2025.116749  

    ISSN:1359-6462

    eISSN:1872-8456

  13. An irreversible hydrogenochromic sensor applicable to corrosion environments with high sensitivity and high spatial resolution 査読有り

    Zhenting Wang, Saya Ajito, Yongxin Wang, Motomichi Koyama, Eiji Akiyama, Hiroshi Kakinuma

    npj Materials Degradation 9 (1) 2025年7月1日

    DOI: 10.1038/s41529-025-00630-6  

    eISSN:2397-2106

  14. Stability of electrochemical hydrogen charging in NaCl aqueous solution containing NH4SCN: Effect of changes in solution chemistry 査読有り

    Saya Ajito, Yusuke Kabasawa, Hiroshi Kakinuma, Motomichi Koyama, Eiji Akiyama

    Corrosion Science 249 112843-112843 2025年6月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.corsci.2025.112843  

    ISSN:0010-938X

  15. Stress and Plastic Strain Partitioning Behaviors and Those Contributions to Martensitic Transformation of Retained Austenite in Medium Manganese and Transformation-Induced Plasticity-Aided Bainitic Ferrite Steels 査読有り

    Tomohiko Hojo, Motomichi Koyama, Bakuya Kumai, Yutao Zhou, Yuki Shibayama, Ayumi Shiro, Takahisa Shobu, Hiroyuki Saitoh, Saya Ajito, Eiji Akiyama

    ISIJ International 65 (2) 284-296 2025年2月15日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2024-268  

    ISSN:0915-1559

    eISSN:1347-5460

  16. Semi-quantitative characterisation of coherency-dependent hydrogen diffusion at Σ3 grain boundaries in pure Ni 査読有り

    Hiroshi Kakinuma, Motomichi Koyama, Rama Srinivas Varanasi, Saya Ajito, Eiji Akiyama

    Materials Research Letters 13 (4) 357-364 2025年1月24日

    出版者・発行元: Informa UK Limited

    DOI: 10.1080/21663831.2025.2457369  

    eISSN:2166-3831

  17. Hydrogen Effects on Hall–Petch Coefficient and Fracture Strength in Pure Ni and Ni-20Cr Alloy: A Macroscopic Insight of the Hydrogen Embrittlement Mechanism 査読有り

    Motomichi Koyama, Kota Tomatsu, Hiroshi Kakinuma, Saya Ajito, Eiji Akiyama

    Metallurgical and Materials Transactions A 56 (3) 771-777 2025年1月23日

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-025-07688-6  

    ISSN:1073-5623

    eISSN:1543-1940

  18. Grain boundary nanochemistry and intergranular corrosion of Fe-0.01wt.%P alloy: Roles of elemental segregations and misorientation 査読有り

    Saya Ajito, Kazuya Tojima, Hiroshi Kakinuma, Kohei Ikeda, Yongjie Zhang, Tomohiko Hojo, Goro Miyamoto, Motomichi Koyama, Tadashi Furuhara, Eiji Akiyama

    Acta Materialia 283 120577-120577 2025年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.actamat.2024.120577  

    ISSN:1359-6454

  19. Stress-controlled hydrogen embrittlement failure in U-bend high-strength steel 査読有り

    Yuki Shibayama, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    International Journal of Hydrogen Energy 88 1010-1016 2024年10月28日

    DOI: 10.1016/j.ijhydene.2024.09.123  

    ISSN:0360-3199

  20. Novel Fe-Mo intermetallic composite synthesized via diffusional-displacive mixed-mode transformation 査読有り

    Rama Srinivas Varanasi, Srikakulapu Kiranbabu, Reina Utsumi, Hiroyuki Saitoh, Ronald Schnitzer, Eiji Akiyama, Motomichi Koyama

    Materials Characterization 216 114287-114287 2024年10月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.matchar.2024.114287  

    ISSN:1044-5803

  21. イリジウム錯体を用いた多結晶純ニッケル中の微視的な水素拡散の可視化 査読有り

    味戸 沙耶, 柿沼 洋, 小山 元道, 秋山 英二

    材料と環境 73 (8) 194-199 2024年8月10日

    出版者・発行元:

    DOI: 10.3323/jcorr.73.194  

    ISSN:0917-0480

    eISSN:1881-9664

  22. Transformation Behaviors and Microstructure Modifications in Hydrogen-Charged Ti–Ni Shape Memory Alloy 査読有り

    Alimzhan Kalbekov, Hiroshi Akamine, Saya Ajito, Eiji Akiyama, Satoshi Hata, Minoru Nishida

    Shape Memory and Superelasticity 2024年6月18日

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s40830-024-00495-9  

    ISSN:2199-384X

    eISSN:2199-3858

  23. ポリアニリンを用いた金属中を拡散する水素の可視化技術 招待有り 査読有り

    柿沼洋, 味戸沙耶, 小山元道, 秋山英二

    まてりあ 63 (6) 381-389 2024年6月1日

    出版者・発行元:

    DOI: 10.2320/materia.63.381  

    ISSN:1340-2625

    eISSN:1884-5843

  24. 超高強度QP-TRIP鋼板の温間V曲げおよび水素脆化特性 査読有り

    北條 智彦, 長坂 明彦, 田畑 千早, 柴山 由樹, 小林 純也, 秋山 英二

    鉄と鋼 110 (10) 740-752 2024年5月23日

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2023-073  

    ISSN:0021-1575

    eISSN:1883-2954

  25. Mechanism of local hydrogen entry into Fe sheets induced by atmospheric corrosion: Significance of potential, pH, and rust layer thickness 査読有り

    Hiroshi Kakinuma, Sachiko Hiromoto, Tomohiko Hojo, Saya Ajito, Motomichi Koyama, Eiji Akiyama

    Corrosion Science 232 112043-112043 2024年5月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.corsci.2024.112043  

    ISSN:0010-938X

  26. Effect of Hydrogen on Fatigue Life and Fracture Morphologies of TRIP-Aided Martensitic Steels with Added Nitrogen 査読有り

    Tomohiko Hojo, Akihiko Nagasaka, Junya Kobayashi, Yuki Shibayama, Eiji Akiyama

    Metals 14 (3) 346-346 2024年3月17日

    出版者・発行元: MDPI AG

    DOI: 10.3390/met14030346  

    eISSN:2075-4701

  27. Microscopic visualization of hydrogen diffusion in UNS S32750 super duplex stainless steel: Roles of crystal structure and grain size 査読有り

    Hiroshi Kakinuma, Saya Ajito, Motomichi Koyama, Eiji Akiyama

    International Journal of Hydrogen Energy 59 866-873 2024年3月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2024.02.069  

    ISSN:0360-3199

  28. Hydrogen Embrittlement Property of a 1.5 GPa Dual-Phase Steel Evaluated Using U-bending Test: A Comparison with Tempered Martensitic Steel with Identical Tensile Strength 査読有り

    Shuya Chiba, Motomichi Koyama, Tomohiko Hojo, Saya Ajito, Yuki Shibayama, Rama Srinivas Varanasi, Eiji Akiyama

    ISIJ International 64 (4) 706-713 2024年2月28日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2023-287  

    ISSN:0915-1559

    eISSN:1347-5460

  29. Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet 査読有り

    Hayato Nishimura, Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Ken-ichi Fujita, Yuki Shibayama, Hiroshi Kakinuma, Eiji Akiyama

    ISIJ International 64 (4) 637-644 2024年2月28日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2023-149  

    ISSN:0915-1559

    eISSN:1347-5460

  30. 超高強度TRIP型マルテンサイト鋼板のスポット溶接引張せん断強度に及ぼす水素の影響 査読有り

    北條智彦, 長坂明彦, 若林龍生, 田畑千早, 近藤陽太, 小笠原一真, 柴山由樹, 秋山英二

    鉄と鋼 110 (3) 171-183 2024年2月15日

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2023-077  

    ISSN:0021-1575

    eISSN:1883-2954

  31. オパールフォトニック結晶膜の色調変化─ひずみ関係の定量評価および複雑形状試験片への適用 査読有り

    周宇涛, 楊志鵬, 小山元道, 味戸沙耶, 北條智彦, 不動寺浩, 秋山英二

    110 (3) 311-320 2024年2月15日

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2023-020  

    ISSN:0021-1575

    eISSN:1883-2954

  32. 中Mn鋼とTRIP型ベイニティックフェライト鋼の応力,塑性ひずみ分配挙動と残留オーステナイトのマルテンサイト変態挙動 査読有り

    北條智彦, 小山元道, 熊井麦弥, 周宇涛, 柴山由樹, 城鮎美, 菖蒲敬久, 齋藤寛之, 味戸沙耶, 秋山英二

    鉄と鋼 110 (3) 227-240 2024年2月15日

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2023-062  

    ISSN:0021-1575

    eISSN:1883-2954

  33. Plasticity-induced Hydrogen Desorptions Associated with Hydrogen-assisted Martensitic Transformation and Deformation Twinning in Austenitic Stainless Steels 査読有り

    Yifei Wen, Motomichi Koyama, Tomohiko Hojo, Saya Ajito, Eiji Akiyama

    ISIJ International 64 (2) 474-481 2024年1月30日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2023-130  

    ISSN:0915-1559

    eISSN:1347-5460

  34. Grain Refinement Effect on Resistance to Hydrogen-assisted Crack Growth in Equiatomic CoCrFeNi High-entropy Alloy with Different H Charging Conditions 査読有り

    Taein Kong, Haoyu Wang, Taekyung Lee, Motomichi Koyama, Eiji Akiyama

    ISIJ International 64 (4) 688-695 2024年

    DOI: 10.2355/ISIJINTERNATIONAL.ISIJINT-2023-218  

    ISSN:0915-1559

  35. Visualization of Microscopic Hydrogen Diffusion in Polycrystalline Pure Ni Using an Ir Complex 査読有り

    Saya Ajito, Hiroshi Kakinuma, Motomichi Koyama, Eiji Akiyama

    MATERIALS TRANSACTIONS 2024年

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-c2024008  

    ISSN:1345-9678

    eISSN:1347-5320

  36. Critical role of initial multi-phase microstructure on the phase transformations during hydrogenation in Fe–Mo alloy system 査読有り

    Rama Srinivas Varanasi, Motomichi Koyama, Reina Utsumi, Hiroyuki Saitoh, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama

    International Journal of Hydrogen Energy 50 1418-1434 2024年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2023.09.268  

    ISSN:0360-3199

  37. In situ visualization of misorientation-dependent hydrogen diffusion at grain boundaries of pure polycrystalline Ni using a hydrogen video imaging system 査読有り

    Hiroshi Kakinuma, Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    Acta Materialia 263 119536-119536 2024年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.actamat.2023.119536  

    ISSN:1359-6454

  38. Temperature dependence of hydrogen-assisted damage evolution and fracture behavior in TRIP-aided bainitic ferrite steel 査読有り

    Yutao Zhou, Tomohiko Hojo, Motomichi Koyama, Saya Ajito, Eiji Akiyama

    Materials Science and Engineering: A 886 145663 2023年10月17日

    DOI: 10.1016/j.msea.2023.145663  

    ISSN:0921-5093

  39. Mesoscale quantification of grain boundary character and local plasticity in hydrogen-assisted intergranular and intergranular-like cracking paths in tempered martensitic steel 査読有り

    Tingshu Chen, Motomichi Koyama, Takahiro Chiba, Eiji Akiyama, Kenichi Takai

    Materials Science and Engineering: A 145718-145718 2023年9月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.msea.2023.145718  

    ISSN:0921-5093

  40. Environment-assisted cracking of AZ31 magnesium alloy in a borate buffer solution containing ammonium thiocyanate under various potentials 査読有り

    Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Sachiko Hiromoto, Eiji Akiyama

    Corrosion Science 218 111195 2023年7月1日

    DOI: 10.1016/j.corsci.2023.111195  

    ISSN:0010-938X

  41. Hydrogen-Induced Delayed Fracture in a 1.5 GPa Dual-Phase Steel via Coalescence of Surface and Sub-surface Cracks 査読有り

    Rama Srinivas Varanasi, Motomichi Koyama, Yuki Shibayama, Shuya Chiba, Saya Ajito, Tomohiko Hojo, Eiji Akiyama

    Metallurgical and Materials Transactions A 54 (8) 2989-2989 2023年5月31日

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-023-07096-8  

    ISSN:1073-5623

    eISSN:1543-1940

  42. Al-10%Zn-2.5%Mg-1.6%Cu合金の引張特性に及ぼすひずみ速度と内在水素の影響

    Tomohiko Hojo, Mamoru Kikuchi, Hiroyuki Waki, Eiji Akiyama

    Journal of Japan Institute of Light Metals 73 (5) 218-222 2023年5月15日

    出版者・発行元: Japan Institute of Light Metals

    DOI: 10.2464/jilm.73.218  

    ISSN:0451-5994

    eISSN:1880-8018

  43. Effects of strain rate and internal hydrogen on tensile properties of Al-10%Mg alloys 査読有り

    Tomohiko Hojo, Mamoru Kikuchi, Eiji Akiyama

    Journal of Japan Institute of Light Metals 73 (5) 223-229 2023年5月15日

    出版者・発行元: Japan Institute of Light Metals

    DOI: 10.2464/jilm.73.223  

    ISSN:0451-5994

    eISSN:1880-8018

  44. Martensite Boundary Characteristics on Cycle- and Time-Dependent Fatigue Crack Growth Paths of Tempered Lath Martensitic Steels in a 90 MPa Gaseous Hydrogen Atmosphere 査読有り

    Tingshu Chen, Motomichi Koyama, Yuhei Ogawa, Hisao Matsunaga, Eiji Akiyama

    Metallurgical and Materials Transactions A 54 (7) 2512-2518 2023年4月

    DOI: 10.1007/s11661-023-07041-9  

    ISSN:1073-5623

  45. Influence of post-oxidizing treatment on passivation performance on the spin-coated titanium oxide films on crystalline silicon 査読有り

    Hao Luo, Van Hoang Nguyen, Kazuhiro Gotoh, Saya Ajito, Tomohiko Hojo, Yasuyoshi Kurokawa, Eiji Akiyama, Noritaka Usami

    Thin Solid Films 764 139597-139597 2023年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.tsf.2022.139597  

    ISSN:0040-6090

  46. Transformation-Induced Microcracks and Their Arrest with Different Deformation Temperatures in a Medium Mn Steel 査読有り

    Yutao Zhou, Motomichi Koyama, Tomohiko Hojo, Saya Ajito, Eiji Akiyama

    Metallurgical and Materials Transactions A 54 (1) 153-166 2023年1月

    DOI: 10.1007/s11661-022-06855-3  

    ISSN:1073-5623

    eISSN:1543-1940

  47. Cr Effects on the Local Plasticity Evolution and Fracture Behaviors of Ni–Cr Alloys Tensile-Tested under Hydrogen Charging 査読有り

    Naohiro Kobayashi, Motomichi Koyama, Misaho Yamamura, Tomohiko Hojo, Eiji Akiyama

    MATERIALS TRANSACTIONS 64 (1) 212-219 2023年1月1日

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-m2022140  

    ISSN:1345-9678

    eISSN:1347-5320

  48. Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe–Mn–Si–Cr alloy 査読有り

    Rama Srinivas Varanasi, Motomichi Koyama, Hiroyuki Saitoh, Reina Utsumi, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama

    International Journal of Hydrogen Energy 48 (27) 10081-10088 2022年12月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2022.11.274  

    ISSN:0360-3199

  49. Mechanical loading effect on the hydrogen uptake of tempered martensite steel: Elastic strain effect vs. plastic strain effect 査読有り

    Yota Masuda, Motomichi Koyama, Hiroshi Kakinuma, Eiji Akiyama

    Materials Science and Engineering: A 862 144486-144486 2022年12月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.msea.2022.144486  

    ISSN:0921-5093

  50. Mixed type brittle fracture in 1.5 GPa dual-phase steel via {100} ferrite cleavage cracking 査読有り

    Rama Srinivas Varanasi, Motomichi Koyama, Yuki Shibayama, Eiji Akiyama

    Materials Science and Engineering: A 857 144021 2022年11月1日

    DOI: 10.1016/j.msea.2022.144021  

    ISSN:0921-5093

  51. Quantitative Evaluation of the Relationship between Strain and Color Change in Opal Photonic Crystal Films and Application into Complex Specimen Geometries 査読有り

    Yutao Zhou, Zhipeng Yang, Motomichi Koyama, Saya Ajito, Tomohiko Hojo, Hiroshi Fudouzi, Eiji Akiyama

    ISIJ International 62 (10) 2061-2068 2022年10月

    DOI: 10.2355/isijinternational.isijint-2022-054  

    ISSN:0915-1559

    eISSN:1347-5460

  52. In situ 2D mapping of hydrogen entry into an Fe sheet under a droplet of NaCl solution using a hydrogenochromic sensor 査読有り

    Hiroshi Kakinuma, Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Sachiko Hiromoto, Eiji Akiyama

    International Journal of Hydrogen Energy 47 (90) 38468-38476 2022年9月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2022.09.006  

    ISSN:0360-3199

  53. Simultaneous observations of the corrosion behavior of an Fe sheet and the associated hydrogen distribution therein employing a hydrogenochromic sensor 査読有り

    Hiroshi Kakinuma, Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Sachiko Hiromoto, Eiji Akiyama

    Corrosion Science 206 110534-110534 2022年9月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.corsci.2022.110534  

    ISSN:0010-938X

  54. Hydrogen-accelerated fatigue crack growth of equiatomic Fe–Cr–Ni–Mn–Co high-entropy alloy evaluated by compact tension testing 査読有り

    Motomichi Koyama, Shunsuke Mizumachi, Eiji Akiyama, Kaneaki Tsuzaki

    Materials Science and Engineering A 848 2022年7月19日

    DOI: 10.1016/j.msea.2022.143394  

    ISSN:0921-5093

  55. Factors Distinguishing Hydrogen-Assisted Intergranular and Intergranular-Like Fractures in a Tempered Lath Martensitic Steel 査読有り

    Tingshu Chen, Takahiro Chiba, Motomichi Koyama, Eiji Akiyama, Kenichi Takai

    Metallurgical and Materials Transactions A 53 (5) 1645-1658 2022年5月

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-022-06608-2  

    ISSN:1073-5623

    eISSN:1543-1940

  56. Synergistic effects of hydrogen and deformation temperature on mechanical properties of TRIP-aided bainitic ferrite steel 査読有り

    Yutao Zhou, Tomohiko Hojo, Motomichi Koyama, Saya Ajito, Eiji Akiyama

    Materials Science and Engineering: A 842 143070-143070 2022年5月

    DOI: 10.1016/j.msea.2022.143070  

    ISSN:0921-5093

    eISSN:1873-4936

  57. Corrosion Monitoring of Carbon Steel in Non-Irradiated, Humidity-Controlled Environments Simulating Gamma-Ray Irradiation 査読有り

    Atsushi Omori, Saya Ajito, Hiroshi Abe, Kuniki Hata, Tomonori Sato, Yoshiyuki Kaji, Hiroyuki Inoue, Mitsumasa Taguchi, Hajime Seito, Eiji Tada, Shunichi Suzuki, Eiji Akiyama

    MATERIALS TRANSACTIONS 63 (4) 555-561 2022年4月1日

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-c2021006  

    ISSN:1345-9678

    eISSN:1347-5320

  58. Comparative study of stress and strain partitioning behaviors in medium manganese and transformation-induced plasticity-aided bainitic ferrite steels 査読有り

    Tomohiko Hojo, Motomichi Koyama, Bakuya Kumai, Yuki Shibayama, Ayumi Shiro, Takahisa Shobu, Hiroyuki Saitoh, Saya Ajito, Eiji Akiyama

    Scripta Materialia 210 114463-114463 2022年3月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.scriptamat.2021.114463  

    ISSN:1359-6462

  59. Austenite stabilization kinetics in early stages of austempering treatment in TRIP-aided steel using in-situ neutron diffraction technique 査読有り

    Yutao Zhou, Tomohiko Hojo, Amane Kitahara, Yusuke Onuki, Shigeo Sato, Motomichi Koyama, Eiji Akiyama

    Materialia 21 101317-101317 2022年3月

    DOI: 10.1016/j.mtla.2022.101317  

    ISSN:2589-1529

    eISSN:2589-1529

  60. Hydrogen Embrittlement Behavior of Pure Ni and Ni–20Cr Alloy with Different Grain Sizes 査読有り

    Naohiro Kobayashi, Motomichi Koyama, Kenji Kobayashi, Tomohiko Hojo, Eiji Akiyama

    MATERIALS TRANSACTIONS 63 (2) 247-256 2022年2月1日

    出版者・発行元: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-m2021170  

    ISSN:1345-9678

    eISSN:1347-5320

  61. Effects of Thermomechanical Processing on Hydrogen Embrittlement Properties of UltraHigh-Strength TRIP-Aided Bainitic Ferrite Steels 査読有り

    Tomohiko Hojo, Yutao Zhou, Junya Kobayashi, Koh-ichi Sugimoto, Yoshito Takemoto, Akihiko Nagasaka, Motomichi Koyama, Saya Ajito, Eiji Akiyama

    Metals 12 (2) 269-269 2022年1月31日

    出版者・発行元: MDPI AG

    DOI: 10.3390/met12020269  

    eISSN:2075-4701

  62. Real‐Time Visualization of Hydrogen Distribution in Metals Using Polyaniline: An Ultrasensitive Hydrogenochromic Sensor 査読有り

    Hiroshi Kakinuma, Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    Advanced Materials Interfaces 9 (18) 2101984-2101984 2022年1月29日

    出版者・発行元: Wiley

    DOI: 10.1002/admi.202101984  

    ISSN:2196-7350

    eISSN:2196-7350

  63. V-Bendability of Ultrahigh-Strength Low Alloy TRIP-Aided Steel Sheets with Bainitic Ferrite Matrix 査読有り

    Akihiko Nagasaka, Tomohiko Hojo, Yuki Shibayama, Masaya Fujita, Takumi Ohashi, Mako Miyasaka, Eiji Akiyama

    ISIJ International 62 (1) 247-256 2022年1月15日

    DOI: 10.2355/isijinternational.isijint-2021-092  

    ISSN:0915-1559

    eISSN:1347-5460

  64. Effects of Ammonium Thiocyanate and pH of Aqueous Solutions on Hydrogen Absorption into Iron under Cathodic Polarization 査読有り

    Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    Tetsu-to-Hagane 108 (11) 857-863 2022年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/tetsutohagane.tetsu-2022-043  

    ISSN:0021-1575

    eISSN:1883-2954

  65. Multi-Probe Characterization of Plasticity Heterogeneity: Requirement of Alloy Design Considering Dislocation Planarity for Developing Crack-Resistant Ni–Cr Alloys 査読有り

    MATERIALS TRANSACTIONS 63 (1) 88-91 2022年1月1日

    出版者・発行元:

    DOI: 10.2320/matertrans.mt-m2021191  

    ISSN:1345-9678

    eISSN:1347-5320

  66. 高強度鋼板中の水素拡散挙動に及ぼす張出し加工の影響 査読有り

    西村隼杜, 味戸沙耶, 北條智彦, 小山元道, 藤田健一, 柴山由樹, 柿沼洋, 秋山英二

    鉄と鋼 108 (5) 316-324 2022年

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2021-096  

    ISSN:0021-1575

    eISSN:1883-2954

  67. 水素チャージ下引張試験におけるNi-Cr合金の局所塑性発達および破壊挙動に及ぼすCrの影響 査読有り

    小林, 直弘, 小山, 元道, 山村, 実早保, 北條, 智彦, 秋山, 英二

    日本金属学会誌 86 (5) 77-84 2022年

    出版者・発行元:

    DOI: 10.2320/jinstmet.j2021054  

    ISSN:0021-4876

    eISSN:1880-6880 2433-7501

  68. Cracking Process in Delayed Fracture of High-Strength Steel after Long Atmospheric Exposure 査読有り

    Tomoka Homma, Takahiro Chiba, Kenichi Takai, Eiji Akiyama, Wataru Oshikawa, Michihiko Nagumo

    ISIJ International 2022年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2021-238  

    ISSN:0915-1559

    eISSN:1347-5460

  69. Mechanisms of hydrogen embrittlement in high-strength aluminum alloys containing coherent or incoherent dispersoids 査読有り

    Mahdieh Safyari, Masoud Moshtaghi, Tomohiko Hojo, Eiji Akiyama

    Corrosion Science 194 109895-109895 2022年1月

    DOI: 10.1016/j.corsci.2021.109895  

    ISSN:0010-938X

    eISSN:1879-0496

  70. Pre-straining alters hydrogen-assisted cracking site and local hydrogen diffusivity in a nitrogen-doped duplex steel 査読有り

    Milene Yumi Maeda, Motomichi Koyama, Hayato Nishimura, Osvaldo Mitsuyuki Cintho, Eiji Akiyama

    Scripta Materialia 207 114272-114272 2022年1月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.scriptamat.2021.114272  

    ISSN:1359-6462

  71. Hydrogenation treatment under several gigapascals assists diffusionless transformation in a face-centered cubic steel 査読有り

    Motomichi Koyama, Hiroyuki Saitoh, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama

    Scientific Reports 11 (1) 2021年12月

    DOI: 10.1038/s41598-021-98938-1  

    ISSN:2045-2322

    eISSN:2045-2322

  72. ガンマ線照射を模擬した非照射の湿度制御環境での炭素鋼の腐食モニタリング 査読有り

    大森惇志, 味戸沙耶, 阿部博志, 端邦樹, 佐藤智徳, 加治芳行, 井上博之, 田口光正, 清藤一, 多田英司, 鈴木俊一, 秋山英二

    材料と環境 70 (11) 358-364 2021年11月10日

    出版者・発行元:

    DOI: 10.3323/jcorr.70.358  

    ISSN:0917-0480

    eISSN:1881-9664

  73. Effect of Hydrogen on Spot-Welded Tensile Properties in Automotive Ultrahigh-Strength TRIP-Aided Martensitic Steel Sheet 査読有り

    Akihiko Nagasaka, Tomohiko Hojo, Katsuya Aoki, Hirofumi Koyama, Akihiro Shimizu, Zulhafiz Bin Zolkepeli, Yuki Shibayama, Eiji Akiyama

    ISIJ International 61 (10) 2644-2653 2021年10月15日

    DOI: 10.2355/isijinternational.isijint-2021-210  

    ISSN:0915-1559

    eISSN:1347-5460

  74. Hierarchical Characteristics of Hydrogen-Assisted Crack Growth and Microstructural Strain Evolution in Tempered Martensitic Steels: Case of Quasi-cleavage Fracture 査読有り

    Tingshu Chen, Takahiro Chiba, Motomichi Koyama, Akinobu Shibata, Eiji Akiyama, Kenichi Takai

    Metallurgical and Materials Transactions A 52 (10) 4703-4713 2021年10月

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-021-06423-1  

    ISSN:1073-5623

    eISSN:1543-1940

  75. Depressurization-induced diffusionless transformation in pure iron hydrogenated under several gigapascals

    Motomichi Koyama, Hiroyuki Saitoh, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama

    Materials Letters: X 11 100078-100078 2021年9月

    DOI: 10.1016/j.mlblux.2021.100078  

    ISSN:2590-1508

  76. Hydrogen embrittlement and associated surface crack growth in fine-grained equiatomic CoCrFeMnNi high-entropy alloys with different annealing temperatures evaluated by tensile testing under in situ hydrogen charging 査読有り

    Haoyu Wang, Motomichi Koyama, Tomohiko Hojo, Eiji Akiyama

    International Journal of Hydrogen Energy 46 (65) 33028-33038 2021年9月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2021.07.136  

    ISSN:0360-3199

  77. Strain rate sensitivity of hydrogen-assisted ε-martensitic transformation and associated hydrogen embrittlement in high-Mn steel 査読有り

    Chunxi Hao, Motomichi Koyama, Saya Ajito, Eiji Akiyama

    International Journal of Hydrogen Energy 46 (53) 27221-27233 2021年8月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2021.05.162  

    ISSN:0360-3199

  78. Effect of austempering treatment on the microstructure and mechanical properties of 0.4C–1.5Si-1.5Mn TRIP-aided bainitic ferrite steel 査読有り

    Yutao Zhou, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    Materials Science and Engineering: A 819 141479-141479 2021年7月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.msea.2021.141479  

    ISSN:0921-5093

  79. Effects of Silicon and Manganese Contents on V-Bending in High-Strength TRIP-Aided Dual-Phase Steel Sheets with Polygonal Ferrite Matrix 査読有り

    Akihiko Nagasaka, Tomohiko Hojo, Masaya Fujita, Takumi Ohashi, Mako Miyasaka, Yuki Shibayama, Eiji Akiyama

    ISIJ International 61 (6) 1980-1989 2021年6月15日

    DOI: 10.2355/isijinternational.isijint-2020_719  

    ISSN:0915-1559

    eISSN:1347-5460

  80. An Evaluation Method for Hydrogen Embrittlement of High Strength Steel Sheets Using U-bend Specimens 査読有り

    Yuki Shibayama, Tomohiko Hojo, Eiji Akiyama

    ISIJ International 61 (4) 1104-1111 2021年4月15日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2020-260  

    ISSN:0915-1559

    eISSN:1347-5460

  81. Effect of hydrogen charging time on hydrogen blister and hydrogen-induced cracking of pure iron 査読有り

    Xinfeng Li, Weihong Huang, Xubin Wu, Jin Zhang, Yao Wang, Eiji Akiyama, Dewen Hou

    Corrosion Science 181 109200 2021年4月

    DOI: 10.1016/j.corsci.2020.109200  

    ISSN:0010-938X

  82. Effects of matrix structure and nitrogen content on fatigue properties of ultrahigh-strength low alloy trip-aided steels 査読有り

    Tomohiko Hojo, Junya Kobayashi, Koh Ichi Sugimoto, Yoshito Takemoto, Akihiko Nagasaka, Motomichi Koyama, Eiji Akiyama

    ISIJ International 61 (2) 591-598 2021年2月15日

    DOI: 10.2355/isijinternational.ISIJINT-2020-392  

    ISSN:0915-1559

  83. Effect of carbon content on v-bending in high-strength tripaided dual-phase steel sheets with polygonal ferrite matrix 査読有り

    Akihiko Nagasaka, Tomohiko Hojo, Masaya Fujita, Takumi Ohashi, Mako Miyasaka, Yuki Shibayama, Eiji Akiyama

    ISIJ International 61 (2) 608-616 2021年2月15日

    DOI: 10.2355/isijinternational.ISIJINT-2020-558  

    ISSN:0915-1559

  84. 純NiおよびNi-Cr合金における水素脆化挙動の結晶粒径依存性 査読有り

    小林直弘, 小山元道, 小林憲司, 北條智彦, 秋山英二

    日本金属学会誌 85 (2) 49-58 2021年2月1日

    出版者・発行元:

    DOI: 10.2320/jinstmet.j2020036  

    ISSN:0021-4876

    eISSN:1880-6880 2433-7501

  85. 自動車用超高張力 TRIP 型マルテンサイト鋼板のスポット溶接引張特性に及ぼす水素の影響 査読有り

    長坂明彦, 北條智彦, 青木克弥, 小山景史, 清水空博, ズルハフィズ・ビン・ゾルケペリ, 柴山由樹, 秋山英二

    鉄と鋼 107 (2) 175-184 2021年2月

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2020-069  

    ISSN:0021-1575

    eISSN:1883-2954

  86. ポリゴナルフェライトを母相に有する TRIP 型高 強度複合組織鋼板のV曲げ加工に及ぼすSi・Mn量の影響 査読有り

    長坂明彦, 北條智彦, 藤田雅也, 大橋拓未, 宮坂真湖, 柴山由樹, 秋山英二

    107 (2) 154-164 2021年2月1日

    DOI: 10.2355/tetsutohagane.TETSU-2020-031  

    ISSN:0021-1575

  87. 超高張力低合金 TRIP 型ベイニティックフェライト鋼板の V曲げ特性 査読有り

    長坂明彦, 北條智彦, 柴山由樹, 藤田雅也, 大橋拓未, 宮坂真湖, 秋山英二

    鉄と鋼 107 (2) 165-174 2021年2月1日

    DOI: 10.2355/tetsutohagane.TETSU-2020-043  

    ISSN:0021-1575

  88. Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel 査読有り

    Milene Yumi Maeda, Motomichi Koyama, Hayato Nishimura, Osvaldo Mitsuyuki Cintho, Eiji Akiyama

    International Journal of Hydrogen Energy 46 (2) 2716-2728 2021年1月6日

    DOI: 10.1016/j.ijhydene.2020.10.152  

    ISSN:0360-3199

  89. ひずみ可視化シートを用いた不均一ひずみの検出:リューダース変形の例 査読有り

    楊志鵬, 小山元道, 不動寺浩, 北條智彦, 秋山英二

    鉄と鋼 107 (8) 681-686 2021年

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2021-028  

    ISSN:0021-1575

    eISSN:1883-2954

  90. 張出し成形した焼戻しマルテンサイト鋼板の水素脆化に及ぼす残留応力の影響 査読有り

    西村隼杜, 北條智彦, 味戸沙耶, 柴山由樹, 小山元道, 秋山英二, 齋藤寛之

    鉄と鋼 107 (9) 760-768 2021年

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2021-055  

    ISSN:0021-1575

    eISSN:1883-2954

  91. 超高強度低合金TRIP鋼の疲労特性に及ぼす母相組織と窒素添加の影響

    北條智彦, 小林純也, 杉本公一, 竹元嘉利, 長坂明彦, 小山元道, 秋山英二

    鉄と鋼 107 (8) 672-680 2021年

    出版者・発行元:

    DOI: 10.2355/tetsutohagane.tetsu-2021-015  

    ISSN:0021-1575

    eISSN:1883-2954

  92. Effects of Stress and Plastic Strain on Hydrogen Embrittlement Fracture of a U-bent Martensitic Steel Sheet 査読有り

    Yuki Shibayama, Tomohiko Hojo, Motomichi Koyama, Hiroyuki Saitoh, Ayumi Shiro, Ryo Yasuda, Takahisa Shobu, Takashi Matsuno, Eiji Akiyama

    ISIJ International 61 (4) 1322-1329 2021年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2020-569  

    ISSN:0915-1559

    eISSN:1347-5460

  93. Effects of Ammonium Thiocyanate and pH of Aqueous Solutions on Hydrogen Absorption into Iron under Cathodic Polarization 査読有り

    Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

    ISIJ International 61 (4) 1209-1214 2021年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2020-551  

    ISSN:0915-1559

    eISSN:1347-5460

  94. Effects of Residual Stress on Hydrogen Embrittlement of a Stretch-Formed Tempered Martensitic Steel Sheet 査読有り

    Hayato Nishimura, Tomohiko Hojo, Saya Ajito, Yuki Shibayama, Motomichi Koyama, Hiroyuki Saitoh, Ayumi Shiro, Ryo Yasuda, Takahisa Shobu, Eiji Akiyama

    ISIJ International 61 (4) 1170-1178 2021年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2020-492  

    ISSN:0915-1559

    eISSN:1347-5460

  95. Roles of hydrogen content and pre-strain on damage evolution of TRIP-aided bainitic ferrite steel 査読有り

    Virendra Kumar Verma, Motomichi Koyama, Bakuya Kumai, Tomohiko Hojo, Eiji Akiyama

    ISIJ International 61 (4) 1309-1314 2021年

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.ISIJINT-2020-514  

    ISSN:0915-1559

    eISSN:1347-5460

  96. Potential Effects of Short-Range Order on Hydrogen Embrittlement of Stable Austenitic Steels—A Review 招待有り 査読有り

    Motomichi Koyama, Burak Bal, Dermican Canadinc, Kishan Habib, Toshihiro Tsuchiyama, Kaneaki Tsuzaki, Eiji Akiyama

    Advanced Structured Materials 143 1-18 2021年

    DOI: 10.1007/978-3-030-66948-5_1  

    ISSN:1869-8433

    eISSN:1869-8441

  97. Activation energy of hydrogen desorption from high-performance titanium oxide carrier-selective contacts with silicon oxide interlayers 査読有り

    Kazuhiro Gotoh, Takeya Mochizuki, Tomohiko Hojo, Yuki Shibayama, Yasuyoshi Kurokawa, Eiji Akiyama, Noritaka Usami

    Current Applied Physics 21 36-42 2021年1月

    DOI: 10.1016/j.cap.2020.10.002  

    ISSN:1567-1739

  98. Effects of residual stress and plastic strain on hydrogen embrittlement of a stretch-formed TRIP-aided martensitic steel sheet 査読有り

    Tomohiko Hojo, Eiji Akiyama, Hiroyuki Saitoh, Ayumi Shiro, Ryo Yasuda, Takahisa Shobu, Junichiro Kinugasa, Fumio Yuse

    Corrosion Science 177 108957-108957 2020年12月

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.corsci.2020.108957  

    ISSN:0010-938X

  99. Role of mill scale on corrosion behavior of steel rebars in mortar 査読有り

    Kotaro Doi, Sachiko Hiromoto, Tadashi Shinohara, Koichi Tsuchiya, Hideki Katayama, Eiji Akiyama

    Corrosion Science 177 108995 2020年12月

    DOI: 10.1016/j.corsci.2020.108995  

    ISSN:0010-938X

  100. Quantitative Evaluation of Hydrogen Effects on Evolutions of Deformation-Induced ε-Martensite and Damage in a High-Mn Steel 査読有り

    Chunxi Hao, Motomichi Koyama, Eiji Akiyama

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 51 (12) 6184-6194 2020年12月

    出版者・発行元: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-020-06021-7  

    ISSN:1073-5623

    eISSN:1543-1940

  101. Availability of Opal Photonic Crystal Films for Visualizing Heterogeneous Strain Evolution in Steels: Example of Lüders Deformation 査読有り

    Zhipeng Yang, Motomichi Koyama, Hiroshi Fudouzi, Tomohiko Hojo, Eiji Akiyama

    ISIJ International 60 (11) 2604-2608 2020年11月15日

    出版者・発行元: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.ISIJINT-2020-223  

    ISSN:0915-1559

    eISSN:1347-5460

  102. Effects of Mn Content and Grain Size on Hydrogen Embrittlement Susceptibility of Face-Centered Cubic High-Entropy Alloys 査読有り

    Motomichi Koyama, Haoyu Wang, Virendra Kumar Verma, Kaneaki Tsuzaki, Eiji Akiyama

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 51 (11) 5612-5616 2020年11月1日

    DOI: 10.1007/s11661-020-05966-z  

    ISSN:1073-5623

  103. Pre-strain effects on critical stress and hydrogen content for hydrogen-induced quasi-cleavage fracture in a TRIP-aided bainitic ferrite steel: Martensitic transformation, matrix damage, and strain aging 査読有り

    Bakuya Kumai, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama, Hiroyuki Waki, Akihiko Nagasaka

    International Journal of Hydrogen Energy 45 (51) 27920-27928 2020年10月16日

    DOI: 10.1016/j.ijhydene.2020.07.036  

    ISSN:0360-3199

  104. Application of an iridium complex for detecting hydrogen permeation through pure iron 査読有り

    Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Ken ichi Fujita, Eiji Akiyama

    International Journal of Hydrogen Energy 45 (46) 25580-25586 2020年9月21日

    出版者・発行元: Elsevier BV

    DOI: 10.1016/j.ijhydene.2020.06.113  

    ISSN:0360-3199

  105. Hydrogen Enhances Shape Memory Effect of a Ferrous Face-Centered Cubic Alloy 査読有り

    Motomichi Koyama, Chunxi Hao, Eiji Akiyama, Kaneaki Tsuzaki

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 51 (9) 4439-4441 2020年9月1日

    DOI: 10.1007/s11661-020-05886-y  

    ISSN:1073-5623

  106. Hydrogen embrittlement resistance of pre-strained ultra-high-strength low alloy TRIP-aided steel 査読有り

    Tomohiko Hojo, Bakuya Kumai, Motomichi Koyama, Eiji Akiyama, Hiroyuki Waki, Hiroyuki Saitoh, Ayumi Shiro, Ryo Yasuda, Takahisa Shobu, Akihiko Nagasaka

    International Journal of Fracture 224 (2) 253-260 2020年8月1日

    DOI: 10.1007/s10704-020-00451-5  

    ISSN:0376-9429

    eISSN:1573-2673

  107. Effects of hydrogen content that alters damage evolution mechanisms in SUH 660 precipitation-strengthened Fe–Cr–Ni steel 査読有り

    Virendra Kumar Verma, Motomichi Koyama, Shigeru Hamada, Eiji Akiyama

    Materials Science and Engineering A 791 2020年7月22日

    DOI: 10.1016/j.msea.2020.139750  

    ISSN:0921-5093

  108. ガンマ線照射を模擬した湿度制御環境での腐食モニタリング 査読有り

    大森惇志, 秋山英二, 阿部博志, 端邦樹, 佐藤智徳, 加治芳行, 井上博之, 田口光正, 清藤一, 多田英司, 鈴木俊一

    材料と環境 69 (4) 107-111 2020年4月10日

    出版者・発行元:

    DOI: 10.3323/jcorr.69.107  

    ISSN:0917-0480

    eISSN:1881-9664

  109. Multiple damage mechanisms facilitated by planar dislocation glide in a commercial-grade precipitation-strengthened Fe–Ni–Cr-based steel 査読有り

    Virendra Kumar Verma, Motomichi Koyama, Shigeru Hamada, Eiji Akiyama

    Materials Science and Engineering A 782 139250 2020年4月

    DOI: 10.1016/j.msea.2020.139250  

    ISSN:0921-5093

  110. Effect of carbon content on v-bending in high-strength TRIP-aided dual-phase steel sheets with polygonal ferrite matrix 査読有り

    Akihiko Nagasaka, Tomohiko Hojo, Masaya Fujita, Takumi Ohashi, Mako Miyasaka, Yuki Shibayama, Eiji Akiyama

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 106 (12) 934-943 2020年

    DOI: 10.2355/TETSUTOHAGANE.TETSU-2020-012  

    ISSN:0021-1575

  111. Strain rate and hydrogen effects on crack growth from a notch in a Fe-high-Mn steel containing 1.1 wt% solute carbon 査読有り

    Hina Najam, Motomichi Koyama, Burak Bal, Eiji Akiyama, Kaneaki Tsuzaki

    International Journal of Hydrogen Energy 45 (1) 1125-1139 2020年1月1日

    DOI: 10.1016/j.ijhydene.2019.10.227  

    ISSN:0360-3199

  112. Effects of alloying elements addition on delayed fracture properties of ultra high-strength trip-aided martensitic steels 査読有り

    Tomohiko Hojo, Junya Kobayashi, Koh Ichi Sugimoto, Akihiko Nagasaka, Eiji Akiyama

    Metals 10 (1) 10.3390/met10010006 2020年1月

    DOI: 10.3390/met10010006  

    eISSN:2075-4701

  113. Transformation-assisted hydrogen desorption during deformation in steels: Examples of α′- and ε-Martensite 査読有り

    Tomohiko Hojo, Motomichi Koyama, Natsuki Terao, Kaneaki Tsuzaki, Eiji Akiyama

    International Journal of Hydrogen Energy 44 (57) 30472-30477 2019年11月15日

    DOI: 10.1016/j.ijhydene.2019.09.171  

    ISSN:0360-3199

  114. Detection of hydrogen effusion before, during, and after martensitic transformation: Example of multiphase transformation-induced plasticity steel 査読有り

    Motomichi Koyama, Daisuke Yamasaki, Arisa Ikeda, Tomohiko Hojo, Eiji Akiyama, Kenichi Takai, Kaneaki Tsuzaki

    International Journal of Hydrogen Energy 44 (47) 26028-26035 2019年10月4日

    DOI: 10.1016/j.ijhydene.2019.07.254  

    ISSN:0360-3199

  115. Corrosion Behavior of Reinforcing Steel with Mill Scale in Concrete

    Kotaro Doi, Sachiko Hiromoto, Tadashi Shinohara, Koichi Tsuchiya, Eiji Akiyama

    ECS Meeting Abstracts {MA}2019-02 (10) 824-824 2019年9月1日

    出版者・発行元: The Electrochemical Society

    DOI: 10.1149/MA2019-02/10/824  

  116. 超高強度低合金TRIP鋼の水素脆化特性に及ぼすひずみ速度の影響 査読有り

    北條智彦, 菊池梨子, 脇裕之, 西村文仁, 鵜飼優子, 秋山英二

    鉄と鋼 105 (4) 33-41 2019年4月

    DOI: 10.2355/tetsutohagane.TETSU-2018-087  

    ISSN:0021-1575

  117. Hydrogen embrittlement behavior of Inconel 718 alloy at room temperature 査読有り

    Xinfeng Li, Jin Zhang, Eiji Akiyama, Qinqin Fu, Qizhen Li

    Journal of Materials Science and Technology 35 (4) 499-502 2019年4月

    DOI: 10.1016/j.jmst.2018.10.002  

    ISSN:1005-0302

  118. Lowering Strain Rate Simultaneously Enhances Carbon- and Hydrogen-Induced Mechanical Degradation in an Fe-33Mn-1.1C Steel 査読有り

    Ibrahim Burkay Tuğluca, Motomichi Koyama, Yusaku Shimomura, Burak Bal, Demircan Canadinc, Eiji Akiyama, Kaneaki Tsuzaki

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 50 (3) 1137-1141 2019年3月15日

    DOI: 10.1007/s11661-018-5080-7  

    ISSN:1073-5623

  119. Hydrogen embrittlement of high strength steam turbine last stage blade steels: Comparison between PH17-4 steel and PH13-8Mo steel 査読有り

    Xinfeng Li, Jin Zhang, Qinqin Fu, Eiji Akiyama, Xiaolong Song, Sicong Shen, Qizhen Li

    Materials Science and Engineering A 742 353-363 2019年1月10日

    DOI: 10.1016/j.msea.2018.10.086  

    ISSN:0921-5093

  120. U曲げ試験片を用いた高強度薄鋼板の水素脆化特性評価法 査読有り

    柴山由樹, 北條智彦, 秋山英二

    鉄と鋼 105 (9) 73-80 2019年

    DOI: 10.2355/tetsutohagane.TETSU-2019-036  

    ISSN:0021-1575

  121. Tensile mechanical properties and fracture behaviors of nickel-based superalloy 718 in the presence of hydrogen 査読有り

    Xinfeng Li, Jin Zhang, Qinqin Fu, Eiji Akiyama, Xiaolong Song, Yanfei Wang, Qizhen Li, Ning Zou

    International Journal of Hydrogen Energy 43 (43) 20118-20132 2018年10月25日

    DOI: 10.1016/j.ijhydene.2018.08.179  

    ISSN:0360-3199

  122. Microstructural and crystallographic study of hydrogen-assisted cracking in high strength PSB1080 steel 査読有り

    Xinfeng Li, Jin Zhang, Eiji Akiyama, Yanfei Wang, Qizhen Li

    International Journal of Hydrogen Energy 43 (37) 17898-17911 2018年9月13日

    DOI: 10.1016/j.ijhydene.2018.07.158  

    ISSN:0360-3199

  123. High-concentration carbon assists plasticity-driven hydrogen embrittlement in a Fe-high Mn steel with a relatively high stacking fault energy 査読有り

    Ibrahim Burkay Tuğluca, Motomichi Koyama, Burak Bal, Demircan Canadinc, Eiji Akiyama, Kaneaki Tsuzaki

    Materials Science and Engineering A 717 78-84 2018年2月21日

    DOI: 10.1016/j.msea.2018.01.087  

    ISSN:0921-5093

  124. Cooling and deformation-induced hydrogen desorption in metastable austenitic steels detected by mass spectroscopy. 査読有り

    Conference proceedings J03 2018年

  125. Interstitial carbon enhanced corrosion resistance of Fe-33Mn-xC austenitic steels: Inhibition of anodic dissolution 査読有り

    Aya Chiba, Motomichi Koyama, Eiji Akiyama, Toshiyasu Nishimura

    Journal of the Electrochemical Society 165 (2) C19-C26 2018年

    DOI: 10.1149/2.0661802jes  

    ISSN:0013-4651

    eISSN:1945-7111

  126. Effects of oxygen pressure and chloride ion concentration on corrosion of iron in mortar exposed to pressurized humid oxygen gas 査読有り

    Kotaro Doi, Sachiko Hiromoto, Hideki Katayama, Eiji Akiyama

    Journal of the Electrochemical Society 165 (9) C582-C589 2018年

    出版者・発行元: The Electrochemical Society

    DOI: 10.1149/2.1421809jes  

    ISSN:0013-4651

    eISSN:1945-7111

  127. Hyperbaric-oxygen accelerated corrosion test for iron in cement paste and mortar 査読有り

    Kotaro Doi, Sachiko Hiromoto, Eiji Akiyama

    Materials Transactions 59 (6) 927-934 2018年

    DOI: 10.2320/matertrans.M2018029  

    ISSN:1345-9678

  128. Effect of strain rate on the hydrogen embrittlement property of ultra high-strength low alloy TRIP-aided steel 査読有り

    Tomohiko Hojo, Riko Kikuchi, Hiroyuki Waki, Fumihito Nishimura, Yuko Ukai, Eiji Akiyama

    ISIJ International 58 (4) 751-759 2018年

    DOI: 10.2355/isijinternational.ISIJINT-2017-576  

    ISSN:0915-1559

  129. 5052 アルミニウム合金の引張変形中のミクロポアとボイドのサイズと分布 査読有り

    北條智彦, 菊池護, 清水一行, 戸田裕之, 竹内晃久, 秋山英二

    軽金属 68 (11) 630-634 2018年

    DOI: 10.2464/jilm.68.630  

    ISSN:0451-5994

  130. セメントペーストおよびモルタル内部の 鉄の高酸素腐食促進試験 査読有り

    土井康太郎, 廣本祥子, 秋山英二

    日本金属学会誌 82 (1) 1-7 2018年

    DOI: 10.2320/jinstmet.J2017030  

    ISSN:0021-4876

  131. Hydrogen embrittlement properties of nitrogen added ultra-high-strength TRIP-aided martensitic steels evaluated by using conventional strain rate technique 査読有り

    Tomohiko Hojo, Kiattada Chanvichitkul, Hiroyuki Waki, Fumihito Nishimura, Eiji Akiyama

    Procedia Manufacturing 15 1581-1587 2018年

    DOI: 10.1016/j.promfg.2018.07.309  

    eISSN:2351-9789

  132. Room-temperature blue brittleness of Fe-Mn-C austenitic steels 査読有り

    Motomichi Koyama, Yusaku Shimomura, Aya Chiba, Eiji Akiyama, Kaneaki Tsuzaki

    Scripta Materialia 141 20-23 2017年12月

    DOI: 10.1016/j.scriptamat.2017.07.017  

    ISSN:1359-6462

  133. モルタル埋設鉄の腐食発生と進展の促進

    土井 康太郎, 廣本 祥子, 秋山英二

    第64回材料と環境討論会講演集 115-116 2017年11月1日

  134. Effect of heat treatment on hydrogen-assisted fracture behavior of PH13-8Mo steel 査読有り

    Xinfeng Li, Jin Zhang, Eiji Akiyama, Qizhen Li, Yanfei Wang

    Corrosion Science 128 198-212 2017年11月

    DOI: 10.1016/j.corsci.2017.09.018  

    ISSN:0010-938X

    eISSN:1879-0496

  135. Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation 査読有り

    Motomichi Koyama, Michael Rohwerder, Cemal Cem Tasan, Asif Bashir, Eiji Akiyama, Kenichi Takai, Dierk Raabe, Kaneaki Tsuzaki

    Materials Science and Technology (United Kingdom) 33 (13) 1481-1496 2017年9月2日

    DOI: 10.1080/02670836.2017.1299276  

    ISSN:0267-0836

    eISSN:1743-2847

  136. Acceleration of Fe Corrosion in Cement Paste and Mortar By Enhancing Oxygen Supply

    Kotaro Doi, Sachiko Hiromoto, Eiji Akiyama

    ECS Meeting Abstracts 2017年9月1日

    出版者・発行元: The Electrochemical Society

    DOI: 10.1149/MA2017-02/13/798  

  137. Warm tempforming effect on the hydrogen embrittlement of 1.8-GPa-class ultra-high-strength low-alloy steel 査読有り

    Yuuji Kimura, Tadanobu Inoue, Eiji Akiyama

    Materials Science and Engineering A 703 (8) 503-512 2017年8月4日

    DOI: 10.1016/j.msea.2017.07.091  

    ISSN:0921-5093

    eISSN:1873-4936

  138. Overview of hydrogen embrittlement in high-Mn steels 査読有り

    Motomichi Koyama, Eiji Akiyama, Young Kook Lee, Dierk Raabe, Kaneaki Tsuzaki

    International Journal of Hydrogen Energy 42 (17) 12706-12723 2017年4月

    DOI: 10.1016/j.ijhydene.2017.02.214  

    ISSN:0360-3199

    eISSN:1879-3487

  139. Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy 査読有り

    T. Nagashima, M. Koyama, A. Bashir, M. Rohwerder, C. C. Tasan, E. Akiyama, D. Raabe, K. Tsuzaki

    Materials and Corrosion 68 (3) 306-310 2017年3月1日

    DOI: 10.1002/maco.201609104  

    ISSN:0947-5117

    eISSN:1521-4176

  140. 酸性溶液中での腐食摩耗による高強度鋼への水素侵入 査読有り

    土井 康太郎, 秋山 英二

    ばね論文集 2017 (62) 9-14 2017年

    出版者・発行元: 日本ばね学会

    DOI: 10.5346/trbane.2017.9  

    ISSN:0385-6917

  141. 北京、重慶および沖縄に室外暴露した試験片を用いた温湿度制御下の電気化学的水素透過試験 査読有り

    秋山英二, 李松杰, 片山英樹, 張波萍, 赵楷, 押川渡

    鉄と鋼 103 (2) 93-100 2017年

    DOI: 10.2355/tetsutohagane.TETSU-2016-096  

    ISSN:0021-1575

    eISSN:1883-2954

  142. Effects of Hydrogen on Tensile Properties at Slow Strain Rate of Ultra High-Strength TRIP-aided Bainitic Ferrite Steels 査読有り

    Tomohiko Hojo, Yuko Ukai, Eiji Akiyama

    Procedia Engineering 207 1868-1873 2017年

    出版者・発行元: Elsevier Ltd

    DOI: 10.1016/j.proeng.2017.10.953  

    ISSN:1877-7058

    eISSN:1877-7058

  143. 酸素加圧下におけるコンクリート中鉄筋の腐食挙動

    土井 康太郎, 廣本 祥子, 秋山 英二

    第63回材料と環境討論会講演集 303-304 2016年10月1日

  144. Martensitic transformation-induced hydrogen desorption characterized by utilizing cryogenic thermal desorption spectroscopy during cooling 査読有り

    Motomichi Koyama, Yuji Abe, Kei Saito, Eiji Akiyama, Kenichi Takai, Kaneaki Tsuzaki

    Scripta Materialia 122 50-53 2016年9月1日

    DOI: 10.1016/j.scriptamat.2016.05.012  

    ISSN:1359-6462

  145. Electrochemical hydrogen permeation tests under galvanostatic hydrogen charging conditions conventionally used for hydrogen embrittlement study 査読有り

    Eiji Akiyama, Songjie Li

    Corrosion Reviews 34 (1-2) 103-112 2016年3月1日

    DOI: 10.1515/corrrev-2015-0049  

    ISSN:0334-6005

    eISSN:2191-0316

  146. Hydrogen-assisted damage in austenite/martensite dual-phase steel 査読有り

    Motomichi Koyama, Cemal Cem Tasan, Tatsuya Nagashima, Eiji Akiyama, Dierk Raabe, Kaneaki Tsuzaki

    Philosophical Magazine Letters 96 (1) 9-18 2016年1月2日

    DOI: 10.1080/09500839.2015.1130275  

    ISSN:0950-0839

    eISSN:1362-3036

  147. Electrochemical hydrogen permeation test under controlled temperature and humidity after outdoor exposure at Beijing, Chongqing and Okinawa 査読有り

    Eiji Akiyama, Songjie Li, Hideki Katayama, Boping Zhang, Kai Zhao, Wataru Oshikawa

    ISIJ International 56 (3) 436-443 2016年

    DOI: 10.2355/isijinternational.ISIJINT-2015-275  

    ISSN:0915-1559

    eISSN:1347-5460

  148. Comparison of constant load, SSRT and CSRT methods for hydrogen embrittlement evaluation using round bar specimens of high strength steels 査読有り

    Tetsushi Chida, Yukito Hagihara, Eiji Akiyama, Kengo Iwanaga, Shusaku Takagi, Masao Hayakawa, Hiroyuki Ohishi, Daisuke Hirakami, Toshimi Tarui

    ISIJ International 56 (7) 1268-1275 2016年

    DOI: 10.2355/isijinternational.ISIJINT-2015-565  

    ISSN:0915-1559

    eISSN:1347-5460

  149. Hydrogen entry into an AISI 4135 high strength steel in tribocorrosion environment 査読有り

    K. Doi, E. Akiyama, M. Hayakawa

    ECS Transactions 75 (29) 33-41 2016年

    DOI: 10.1149/07529.0033ecst  

    ISSN:1938-6737

    eISSN:1938-5862

  150. Electrochemical hydrogen permeation tests under conventional potentiostatic hydrogen charging conditions for hydrogen embrittlement study 査読有り

    E. Akiyama, S. Li

    ECS Transactions 75 (29) 23-31 2016年

    出版者・発行元: Electrochemical Society Inc.

    DOI: 10.1149/07529.0023ecst  

    ISSN:1938-6737

    eISSN:1938-5862

  151. Hydrogen visualization in steels using Ag decoration method 査読有り

    Eiji Akiyama, Saburo Matsuoka

    Materials Transactions 56 (6) 793-797 2015年

    DOI: 10.2320/matertrans.M2014431  

    ISSN:1345-9678

    eISSN:1347-5320

  152. Spatially and kinetically resolved mapping of hydrogen in a twinning-induced plasticity steel by use of Scanning Kelvin Probe Force Microscopy 査読有り

    Motomichi Koyama, Asif Bashir, Michael Rohwerder, Sergiy V. Merzlikin, Eiji Akiyama, Kaneaki Tsuzaki, Dierk Raabe

    Journal of the Electrochemical Society 162 (12) C638-C647 2015年

    DOI: 10.1149/2.0131512jes  

    ISSN:0013-4651

    eISSN:1945-7111

  153. Hydrogen-assisted decohesion and localized plasticity in dual-phase steel 査読有り

    Motomichi Koyama, Cemal Cem Tasan, Eiji Akiyama, Kaneaki Tsuzaki, Dierk Raabe

    Acta Materialia 70 174-187 2014年5月15日

    DOI: 10.1016/j.actamat.2014.01.048  

    ISSN:1359-6454

    eISSN:1873-2453

  154. Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe-Mn-Al-C light weight austenitic steel 査読有り

    Motomichi Koyama, Hauke Springer, Sergiy V. Merzlikin, Kaneaki Tsuzaki, Eiji Akiyama, Dierk Raabe

    International Journal of Hydrogen Energy 39 (9) 4634-4646 2014年3月18日

    DOI: 10.1016/j.ijhydene.2013.12.171  

    ISSN:0360-3199

    eISSN:1879-3487

  155. Factors affecting hydrogen embrittlement susceptibility of twinning-induced plasticity steels. 査読有り

    Proc. 2nd HMnS 2014年

  156. Fe-Mn-C-Al TWIP鋼の水素脆化における静的および動的ひずみ時効の影響 査読有り

    小山元道, 秋山英二, 津﨑兼彰

    鉄と鋼 100 1132-1139 2014年

  157. 水素チャージ下引張試験におけるAl添加型TWIP鋼の水素脆化 査読有り

    小山元道, 秋山英二, 津﨑兼彰

    鉄と鋼 100 662-667 2014年

  158. Effects of static and dynamic strain aging on hydrogen embrittlement in twip steels containing Al 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 100 (9) 1132-1139 2014年

    DOI: 10.2355/tetsutohagane.100.1132  

    ISSN:0021-1575

    eISSN:1883-2954

  159. Hydrogen embrittlement in Al-added twinning-induced plasticity steels evaluated by tensile tests during hydrogen charging 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 100 (5) 662-667 2014年

    DOI: 10.2355/tetsutohagane.100.662  

    ISSN:0021-1575

    eISSN:1883-2954

  160. Factors affecting static strain aging under stress at room temperature in a Fe-Mn-C twinning-induced plasticity steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 100 (9) 1123-1131 2014年

    DOI: 10.2355/tetsutohagane.100.1123  

    ISSN:0021-1575

    eISSN:1883-2954

  161. 定荷重・SSRT・CSRT法による高強度鋼の丸棒試験片を用いた水素脆化評価 査読有り

    千田徹志, 萩原行人, 秋山英二, 岩永健吾, 髙木周作, 大石裕之, 早川正夫, 平上大輔, 樽井敏三

    鉄と鋼 100 (10) 1298-1305 2014年

    DOI: 10.2355/tetsutohagane.100.1298  

    ISSN:0021-1575

    eISSN:1883-2954

  162. Hydrogen visualization in steels using ag decoration method 査読有り

    Eiji Akiyama, Saburo Matsuoka

    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals 77 (12) 622-626 2013年12月

    DOI: 10.2320/jinstmet.JC201311  

    ISSN:0021-4876

    eISSN:1880-6880

  163. Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Takahiro Sawaguchi, Kazuyuki Ogawa, Irina V. Kireeva, Yury I. Chumlyakov, Kaneaki Tsuzaki

    Corrosion Science 75 345-353 2013年10月

    DOI: 10.1016/j.corsci.2013.06.018  

    ISSN:0010-938X

    eISSN:1879-0496

  164. Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki, Dierk Raabe

    Acta Materialia 61 (12) 4607-4618 2013年7月

    DOI: 10.1016/j.actamat.2013.04.030  

    ISSN:1359-6454

  165. Fretting fatigue behaviour of Ni-free high-nitrogen stainless steel in a simulated body fluid 査読有り

    Norio Maruyama, Sachiko Hiromoto, Eiji Akiyama, Morihiko Nakamura

    Science and Technology of Advanced Materials 14 (2) 025002 2013年4月

    DOI: 10.1088/1468-6996/14/2/025002  

    ISSN:1468-6996

  166. Studies of evaluation of hydrogen embrittlement property of high-strength steels with consideration of the effect of atmospheric corrosion 査読有り

    Eiji Akiyama, Maoqiu Wang, Songjie Li, Zuogui Zhang, Yuuji Kimura, Nobuyoshi Uno, Kaneaki Tsuzaki

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 44 (3) 1290-1300 2013年3月

    DOI: 10.1007/s11661-012-1403-2  

    ISSN:1073-5623

    eISSN:1543-1940

  167. 高力ボルトの遅れ破壊に影響を及ぼす侵入水素量の確率論的評価 査読有り

    松岡 和巳, 宇野 暢芳, 秋山 英二, 萩原 行人, 松山 晋作, 原田 宏明

    鋼構造論文集 20 (79) 79_29-79_40 2013年

    出版者・発行元: Japanese Society of Steel Construction

    DOI: 10.11273/jssc.20.79_29  

    ISSN:1880-9928

  168. Hydrogen entry behavior into iron and steels under atmospheric corrosion 査読有り

    Songjie Li, Eiji Akiyama, Tadashi Shinohara, Kazumi Matsuoka, Wataru Oshikawa

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 99 (11) 651-658 2013年

    DOI: 10.2355/tetsutohagane.99.651  

    ISSN:0021-1575

    eISSN:1883-2954

  169. Effects of static and dynamic strain aging on hydrogen embrittlement in twip steels containing al 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    ISIJ International 53 (7) 1268-1274 2013年

    DOI: 10.2355/isijinternational.53.1268  

    ISSN:0915-1559

  170. Factors affecting static strain aging under stress at room temperature in a Fe-Mn-C twinning-induced plasticity steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    ISIJ International 53 (6) 1089-1096 2013年

    DOI: 10.2355/isijinternational.53.1089  

    ISSN:0915-1559

  171. Hydrogen entry behavior into iron and steel under atmospheric corrosion 査読有り

    Songjie Li, Eiji Akiyama, Tadashi Shinohara, Kazumi Matsuoka, Wataru Oshikawa

    ISIJ International 53 (6) 1062-1069 2013年

    DOI: 10.2355/isijinternational.53.1062  

    ISSN:0915-1559

    eISSN:1347-5460

  172. The use of renewable energy in the form of methane via electrolytic hydrogen generation 査読有り

    K. Hashimoto, N. Kumagai, K. Izumiya, H. Takano, P. R. Zabiński, A. A. El-Moneim, M. Yamasaki, Z. Kato, E. Akiyama, H. Habazaki

    Archives of Metallurgy and Materials 58 (1) 231-239 2013年

    DOI: 10.2478/v10172-012-0179-0  

    ISSN:1733-3490

  173. Effect of hydrogen content on the embrittlement in a Fe-Mn-C twinning-induced plasticity steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Corrosion Science 59 277-281 2012年6月

    DOI: 10.1016/j.corsci.2012.03.009  

    ISSN:0010-938X

  174. Hydrogen-induced delayed fracture of a Fe-22Mn-0.6C steel pre-strained at different strain rates 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Scripta Materialia 66 (11) 947-950 2012年6月

    DOI: 10.1016/j.scriptamat.2012.02.040  

    ISSN:1359-6462

  175. Hydrogen embrittlement of a 1500-MPa tensile strength level steel with an ultrafine elongated grain structure 査読有り

    Yihong Nie, Yuuji Kimura, Tadanobu Inoue, Fuxing Yin, Eiji Akiyama, Kaneaki Tsuzaki

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 43 (5) 1670-1687 2012年5月

    DOI: 10.1007/s11661-011-0974-7  

    ISSN:1073-5623

  176. Hydrogen-induced cracking at grain and twin boundaries in an Fe-Mn-C austenitic steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Takahiro Sawaguchi, Dierk Raabe, Kaneaki Tsuzaki

    Scripta Materialia 66 (7) 459-462 2012年4月

    DOI: 10.1016/j.scriptamat.2011.12.015  

    ISSN:1359-6462

  177. Evaluation of delayed fracture property of high strength bolt steels 査読有り

    Eiji Akiyama

    ISIJ International 52 (2) 307-315 2012年

    DOI: 10.2355/isijinternational.52.307  

    ISSN:0915-1559

    eISSN:1347-5460

  178. Hydrogen embrittlement in Al-added twinning-induced plasticity steels evaluated by tensile tests during hydrogen charging 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    ISIJ International 52 (12) 2283-2287 2012年

    DOI: 10.2355/isijinternational.52.2283  

    ISSN:0915-1559

    eISSN:1347-5460

  179. Hydrogen embrittlement in a Fe-Mn-C ternary twinning-induced plasticity steel 査読有り

    Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

    Corrosion Science 54 (1) 1-4 2012年1月

    DOI: 10.1016/j.corsci.2011.09.022  

    ISSN:0010-938X

  180. Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution 査読有り

    A. A. El-Moneim, E. Akiyama, K. M. Ismail, K. Hashimoto

    Corrosion Science 53 (9) 2988-2993 2011年9月

    DOI: 10.1016/j.corsci.2011.05.043  

    ISSN:0010-938X

  181. Constant-load delayed fracture test of atmospherically corroded high strength steels 査読有り

    Eiji Akiyama, Katsuhiro Matsukado, Songjie Li, Kaneaki Tsuzaki

    Applied Surface Science 257 (19) 8275-8281 2011年7月15日

    DOI: 10.1016/j.apsusc.2011.03.037  

    ISSN:0169-4332

    eISSN:1873-5584

  182. Hydrogen entry into Fe and high strength steels under simulated atmospheric corrosion 査読有り

    Eiji Akiyama, Songjie Li, Tadashi Shinohara, Zuogui Zhang, Kaneaki Tsuzaki

    Electrochimica Acta 56 (4) 1799-1805 2011年1月15日

    DOI: 10.1016/j.electacta.2010.09.043  

    ISSN:0013-4686

    eISSN:1873-3859

  183. Evaluation of delayed fracture property of outdoor-exposed high strength AISI 4135 steels 査読有り

    Songjie Li, Eiji Akiyama, Nobuyoshi Uno, Keiji Hirai, Kaneaki Tsuzaki, Boping Zhang

    Corrosion Science 52 (10) 3198-3204 2010年10月

    DOI: 10.1016/j.corsci.2010.05.038  

    ISSN:0010-938X

    eISSN:1879-0496

  184. Evaluation of hydrogen entry into high strength steel under atmospheric corrosion 査読有り

    Eiji Akiyama, Katsuhiro Matsukado, Maoqiu Wang, Kaneaki Tsuzaki

    Corrosion Science 52 (9) 2758-2765 2010年9月

    DOI: 10.1016/j.corsci.2009.11.046  

    ISSN:0010-938X

    eISSN:1879-0496

  185. Evaluation of susceptibility of high strength steels to delayed fracture by using cyclic corrosion test and slow strain rate test 査読有り

    Songjie Li, Zuogui Zhang, Eiji Akiyama, Kaneaki Tsuzaki, Boping Zhang

    Corrosion Science 52 (5) 1660-1667 2010年5月

    DOI: 10.1016/j.corsci.2010.02.005  

    ISSN:0010-938X

    eISSN:1879-0496

  186. Hydrogen embrittlement property of a 1700-MPa-class ultrahigh-strength tempered martensitic steel 査読有り

    Songjie Li, Eiji Akiyama, Kimura Yuuji, Kaneaki Tsuzaki, Nobuyoshi Uno, Boping Zhang

    Science and Technology of Advanced Materials 11 (2) 025005 2010年

    DOI: 10.1088/1468-6996/11/2/025005  

    ISSN:1468-6996

    eISSN:1878-5514

  187. Effects of severe plastic deformation on the corrosion behavior of aluminum alloys 査読有り

    Eiji Akiyama, Zuogui Zhang, Yoshimi Watanabe, Kaneaki Tsuzaki

    Journal of Solid State Electrochemistry 13 (2) 277-282 2009年2月

    DOI: 10.1007/s10008-007-0496-9  

    ISSN:1432-8488

  188. Hydrogen embrittlement of high strength steels and environmental hydrogen entry 査読有り

    Eiji Akiyama, Songjie Li, Zuogui Zhang, Maoqiu Wang, Katsuhiro Matsukado, Kaneaki Tsuzaki, Boping Zhang

    Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials 54-61 2009年

  189. Evaluation of delayed fracture characteristics of high strength steel based on CSRT method 査読有り

    Yukito Hagihara, Chikahito Ito, Noriyuki Hisamori, Hiroshi Suzuki, Kenichi Takai, Eiji Akiyama

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 94 (6) 215-221 2008年

    DOI: 10.2355/tetsutohagane.94.215  

    ISSN:0021-1575

    eISSN:1883-2954

  190. Effect of hydrogen on the fracture behavior of high strength steel during slow strain rate test 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Corrosion Science 49 (11) 4081-4097 2007年11月

    DOI: 10.1016/j.corsci.2007.03.038  

    ISSN:0010-938X

  191. Effect of α-Al/Al3Ni microstructure on the corrosion behaviour of Al-5.4 wt% Ni alloy fabricated by equal-channel angular pressing 査読有り

    Zhang, Z, Akiyama, E, Watanabe, Y, Katada, Y, Tsuzaki, K

    Corros. Sci. 49 (7) 2962-2972 2007年7月

    DOI: 10.1016/j.corsci.2007.02.007  

    ISSN:0010-938X

  192. Corrosion behavior of Al-7wt% Sl-1.5wt% Cu severely deformed by equal-channel angular pressing 査読有り

    Zuogui Zhang, Eiji Akiyama, Yoshimi Watanabe, Yasuyuki Katada, Kaneaki Tsuzaki

    Materials Science Forum 539-543 (PART 3) 2892-2897 2007年

    DOI: 10.4028/0-87849-428-6.2892  

    ISSN:0255-5476

    eISSN:1662-9752

  193. The role of corrosion-resistant alloying elements in passivity 査読有り

    K. Hashimoto, K. Asami, A. Kawashima, H. Habazaki, E. Akiyama

    Corrosion Science 49 (1) 42-52 2007年1月

    DOI: 10.1016/j.corsci.2006.05.003  

    ISSN:0010-938X

  194. Discrete electrochemical transients of aluminium alloys generated by slurry jet impingement 査読有り

    Eiji Akiyama, Martin Stratmann, Achim Walter Hassel

    Journal of Physics D: Applied Physics 39 (15) 3157-3164 2006年8月7日

    DOI: 10.1088/0022-3727/39/15/S05  

    ISSN:0022-3727

    eISSN:1361-6463

  195. Determination of the critical hydrogen concentration for delayed fracture of high strength steel by constant load test and numerical calculation 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Corrosion Science 48 (8) 2189-2202 2006年8月

    DOI: 10.1016/j.corsci.2005.07.010  

    ISSN:0010-938X

  196. Effect of hydrogen on notch tensile strength of high strength steel 査読有り

    Mao Qiu Wang, Han Dong, Wei Jun Hui, Jie Shi, Eiji Akiyama, Kaneaki Tsuzaki

    Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 27 (4) 57-60 2006年8月

    ISSN:1009-6264

  197. Fracture criterion for hydrogen embrittlement of high strength steel 査読有り

    M. Q. Wang, E. Akiyama, K. Tsuzaki

    Materials Science and Technology 22 (2) 167-172 2006年2月

    DOI: 10.1179/174328406X86191  

    ISSN:0267-0836

  198. Acetate and chloride effects on hydrogen production across crevices 査読有り

    T. Sundararajan, E. Akiyama, K. Tsuzaki

    Materials Science Forum 512 97-102 2006年

    DOI: 10.4028/0-87849-996-2.97  

    ISSN:0255-5476

    eISSN:1662-9752

  199. Effect of hydrogen on the fracture behavior of high-strength Cr-Mo steel 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Materials Science Forum 512 55-60 2006年

    DOI: 10.4028/0-87849-996-2.55  

    ISSN:0255-5476

    eISSN:1662-9752

  200. Influence of microstructure on electrochemical properties of severely deformed AI-5 wt% Cu alloy by ECAP 査読有り

    Zuogui Zhang, Eiji Akiyama, Yoshimi Watanabe, Yasuyuki Katada, Kaneaki Tsuzaki

    Materials Science Forum 519-521 (PART 1) 705-710 2006年

    DOI: 10.4028/0-87849-408-1.705  

    ISSN:0255-5476

    eISSN:1662-9752

  201. Hydrogen entry in crevice region: Evaluation by hydrogen permeation technique 査読有り

    Thiyagarajan Sundararajan, Eiji Akiyama, Yasuyuki Katada, Kaneaki Tsuzaki

    ISIJ International 46 (7) 1081-1085 2006年

    DOI: 10.2355/isijinternational.46.1081  

    ISSN:0915-1559

  202. Hydrogen mapping across a crevice: Effect of applied potential 査読有り

    T. Sundararajan, E. Akiyama, K. Tsuzaki

    Scripta Materialia 53 (11) 1219-1223 2005年12月

    DOI: 10.1016/j.scriptamat.2005.08.016  

    ISSN:1359-6462

  203. Crosshead speed dependence of the notch tensile strength of a high strength steel in the presence of hydrogen 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Scripta Materialia 53 (6) 713-718 2005年9月

    DOI: 10.1016/j.scriptamat.2005.05.014  

    ISSN:1359-6462

  204. Effect of hydrogen and stress concentration on the notch tensile strength of AISI 4135 steel 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Materials Science and Engineering A 398 (1-2) 37-46 2005年5月25日

    DOI: 10.1016/j.msea.2005.03.008  

    ISSN:0921-5093

  205. Hydrogen degradation of a boron-bearing steel with 1050 and 1300MPa strength levels 査読有り

    Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

    Scripta Materialia 52 (5) 403-408 2005年3月

    DOI: 10.1016/j.scriptamat.2004.10.023  

    ISSN:1359-6462

  206. Depassivation and repassivation of titanium under particle impingements 査読有り

    E. Akiyama, K. Tsuzaki

    ECS Transactions 1 (4) 437-446 2005年

    DOI: 10.1149/1.2215527  

    ISSN:1938-5862

    eISSN:1938-6737

  207. Hydrogen mapping across crevices 査読有り

    T. Sundararajan, E. Akiyama, K. Tsuzaki

    Electrochemical and Solid-State Letters 8 (9) B30-B33 2005年

    DOI: 10.1149/1.1979367  

    ISSN:1099-0062

  208. Storage and release of soluble hexavalent chromium from chromate conversion coatings on Al alloys 査読有り

    E. Akiyama, A. J. Markworth, J. K. McCoy, G. S. Frankel, L. Xia, R. L. McCreery

    Journal of the Electrochemical Society 150 (2) B83-B91 2003年2月

    DOI: 10.1149/1.1537755  

    ISSN:0013-4651

  209. Distribution of hydrogen occluded in bolts tightened beyond the yield strength and exposed at a seashore site 査読有り

    Shinji Sakashita, Eiji Akiyama, Kaneaki Tsuzaki, Shinsaku Matsuyama

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 88 (12) 849-856 2002年12月

    DOI: 10.2355/tetsutohagane1955.88.12_849  

    ISSN:0021-1575

    eISSN:1883-2954

  210. Materials for global carbon dioxide recycling 査読有り

    K. Hashimoto, M. Yamasaki, S. Meguro, T. Sasaki, H. Katagiri, K. Izumiya, N. Kumagai, H. Habazaki, E. Akiyama, K. Asami

    Corrosion Science 44 (2) 371-386 2002年2月

    DOI: 10.1016/S0010-938X(01)00067-1  

    ISSN:0010-938X

  211. Advanced materials for global carbon dioxide recycling 査読有り

    K. Hashimoto, H. Habazaki, M. Yamasaki, S. Meguro, T. Sasaki, H. Katagiri, T. Matsui, K. Fujimura, K. Izumiya, N. Kumagai, E. Akiyama

    Materials Science and Engineering A 304-306 (1-2) 88-96 2001年5月31日

    DOI: 10.1016/S0921-5093(00)01457-X  

    ISSN:0921-5093

  212. Enhancement of corrosion resistance of amorphous aluminum alloys by alloying additions 査読有り

    E Akiyama, K Asami, H Habazaki, A Kawashima, K Hashimoto

    CORROSION AND CORROSION PROTECTION 2001 (22) 1-8 2001年

  213. Angle-resolved XPS for determination of diffusion coefficients and mobilities of cations in thin passive films 査読有り

    Katsuhiko Asami, Eiji Akiyama, Koji Hashimoto

    Surface and Interface Analysis 30 (1) 106-111 2000年8月

    DOI: 10.1002/1096-9918(200008)30:1<106::AID-SIA768>3.0.CO;2-3  

    ISSN:0142-2421

  214. Storage and release of soluble hexavalent chromium from chromate conversion coatings. Equilibrium aspects of CrVI concentration 査読有り

    Lin Xia, Eiji Akiyama, Gerald Frankel, Richard McCreery

    Journal of the Electrochemical Society 147 (7) 2556-2562 2000年7月

    DOI: 10.1149/1.1393568  

    ISSN:0013-4651

  215. Effects of nanocrystalline heterogeneity on the corrosion behavior of sputter-deposited chromium-niobium alloys 査読有り

    M. Mehmood, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 42 (2) 361-382 2000年2月1日

    DOI: 10.1016/S0010-938X(99)00077-3  

    ISSN:0010-938X

  216. Oxidation behavior of amorphous Ni-Zr and Ni-Zr-rare earth element alloys 査読有り

    M Yamasaki, H Habazaki, A Kawashima, K Asami, E Akiyama, K Hashimoto

    HIGH TEMPERATURE CORROSION AND MATERIALS CHEMISTRY 99 (38) 180-191 2000年

  217. XPS determination of diffusion coefficients of cations in thin passive films on alloys 査読有り

    Katsuhiko Asami, Eiji Akiyama, Koji Hashimoto

    Solid State Phenomena 72 79-84 2000年

    DOI: 10.4028/www.scientific.net/ssp.72.79  

    ISSN:1012-0394

  218. Influence of dichromate ions on aluminum dissolution kinetics in artificial crevice electrode cells 査読有り

    E. Akiyama, G. S. Frankel

    Journal of the Electrochemical Society 146 (11) 4095-4100 1999年11月

    DOI: 10.1149/1.1392597  

    ISSN:0013-4651

  219. The corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Ta alloys in 12 M HCl 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 41 (9) 1849-1869 1999年8月

    DOI: 10.1016/S0010-938X(99)00019-0  

    ISSN:0010-938X

  220. The degradation of the corrosion resistance of sputter-deposited chromium-titanium alloys by nanoscale heterogeneity 査読有り

    M. Mehmood, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 41 (9) 1871-1890 1999年8月

    DOI: 10.1016/S0010-938X(99)00020-7  

    ISSN:0010-938X

  221. The sulfidation and oxidation behavior of sputter-deposited Al-Nb-Mo alloys 査読有り

    K. Hon-Yashiki, H. Habazaki, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto, S. Mrowec

    Materials Science and Engineering A 267 (2) 277-284 1999年7月31日

    DOI: 10.1016/S0921-5093(99)00103-3  

    ISSN:0921-5093

  222. Corrosion-resistant Mn-Zr-Cr alloys in chloride-containing media 査読有り

    A. A. El-Moneim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 267 (2) 285-293 1999年7月31日

    DOI: 10.1016/S0921-5093(99)00104-5  

    ISSN:0921-5093

  223. CO<inf>2</inf> methanation catalysts prepared from amorphous Ni-Zr-Sm and Ni-Zr-misch metal alloy precursors 査読有り

    Michiaki Yamasaki, Mitsuru Komori, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Science and Engineering A 267 (2) 220-226 1999年7月31日

    DOI: 10.1016/S0921-5093(99)00095-7  

    ISSN:0921-5093

  224. Oxygen evolution on manganese-molybdenum oxide anodes in seawater electrolysis 査読有り

    K. Fujimura, T. Matsui, K. Izumiya, N. Kumagai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 267 (2) 254-259 1999年7月31日

    DOI: 10.1016/S0921-5093(99)00100-8  

    ISSN:0921-5093

  225. Global CO<inf>2</inf> recycling - Novel materials and prospect for prevention of global warming and abundant energy supply 査読有り

    K. Hashimoto, M. Yamasaki, K. Fujimura, T. Matsui, K. Izumiya, M. Komori, A. A. El-Moneim, E. Akiyama, H. Habazaki, N. Kumagai, A. Kawashima, K. Asami

    Materials Science and Engineering A 267 (2) 200-206 1999年7月31日

    DOI: 10.1016/S0921-5093(99)00092-1  

    ISSN:0921-5093

  226. Electrochemical and XPS studies of the corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Nb alloys in 6 M HCl 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 41 (6) 1095-1118 1999年6月1日

    DOI: 10.1016/S0010-938X(98)00174-7  

    ISSN:0010-938X

  227. Release of chromate ions from chromate conversion coatings on Al alloys 査読有り

    E Akiyama, L Xia, R McCreery, A Markworth, GS Frankel

    PASSIVITY AND LOCALIZED CORROSION 99 (27) 300-309 1999年

  228. The critical size and nature of nanocrystalline heterogeneity for pitting corrosion 査読有り

    K Hashimoto, M Mehmood, XY Li, E Akiyama, H Habazaki, A Kawashima, K Asami

    PROCEEDINGS OF THE SYMPOSIUM ON CRITICAL FACTORS IN LOCALIZED CORROSION III 98 (17) 245-255 1999年

  229. Anodically deposited manganese-molybdenum oxide anodes with high selectivity for evolving oxygen in electrolysis of seawater 査読有り

    K. Fujimura, K. Izumiya, A. Kawashima, E. Akiyama, H. Habazaki, N. Kumagai, K. Hashimoto

    Journal of Applied Electrochemistry 29 (6) 765-771 1999年

    DOI: 10.1023/A:1003492009263  

    ISSN:0021-891X

  230. The influence of concentration of hydrochloric acid solutions on the passivation behavior of sputter-deposited tungsten rich W-Nb alloys 査読有り

    J. Bhattarai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (11) 1897-1914 1998年11月1日

    DOI: 10.1016/S0010-938X(98)00088-2  

    ISSN:0010-938X

  231. Hydrogen evolution characteristics of sputter-deposited Co-Mo, Co-Al and Co-Mo-Al alloy electrodes in NaOH solution 査読有り

    Toshio Aihara, Asahi Kawashima, Eiji Akiyama, Hiroki Habazaki, Katsuhiko Asami, Koji Hashimoto

    Materials Transactions, JIM 39 (10) 1017-1023 1998年10月

    DOI: 10.2320/matertrans1989.39.1017  

    ISSN:0916-1821

  232. The effect of alloying elements on the corrosion behaviour of sputter-deposited amorphous Mn-Ta-Cr alloys in 1 M H<inf>2</inf>SO<inf>4</inf> 査読有り

    A. A. El-Moneim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (9) 1491-1512 1998年9月1日

    DOI: 10.1016/S0010-938X(98)00061-4  

    ISSN:0010-938X

  233. XPS and electrochemical studies on the corrosion behaviour of sputter-deposited amorphous Mn-Nb alloys in a neutral chloride solution 査読有り

    A. A. El-Moneim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (9) 1513-1531 1998年9月1日

    DOI: 10.1016/S0010-938X(98)00064-X  

    ISSN:0010-938X

  234. Electrochemical and XPS studies of the passivation behavior of sputter-deposited Cr-Ta alloys in 12 M HCl 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (9) 1587-1604 1998年9月1日

    DOI: 10.1016/S0010-938X(98)00070-5  

    ISSN:0010-938X

  235. Electrochemical and XPS studies of the passivation behavior of sputter-deposited Cr-Ta alloys in 12 M HCl 査読有り

    XY Li, E Akiyama, H Habazaki, A Kawashima, K Asami, K Hashimoto

    CORROSION SCIENCE 40 (9) 1587-1604 1998年9月

    DOI: 10.1016/S0010-938X(97)00106-6  

    ISSN:0010-938X

  236. Anodically deposited manganese oxide and manganese-tungsten oxide electrodes for oxygen evolution from seawater 査読有り

    K. Izumiya, E. Akiyama, H. Habazaki, N. Kumagai, A. Kawashima, K. Hashimoto

    Electrochimica Acta 43 (21-22) 3303-3312 1998年7月1日

    DOI: 10.1016/S0013-4686(98)00075-9  

    ISSN:0013-4686

  237. An XPS study of passive films on sputter-deposited Cr-Nb alloys in 12 M HCl solution 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (4-5) 821-838 1998年4月

    DOI: 10.1016/S0010-938X(98)00003-1  

    ISSN:0010-938X

  238. The passivation behavior of sputter-deposited W-Ta alloys in 12M HCl 査読有り

    J. Bhattarai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (4-5) 757-779 1998年4月

    DOI: 10.1016/S0010-938X(97)00177-7  

    ISSN:0010-938X

  239. The effect of heat treatment on the corrosion behavior of sputter-deposited aluminum-chromium alloys 査読有り

    M. Mehmood, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 41 (3) 477-499 1998年3月1日

    DOI: 10.1016/S0010-938X(98)00130-9  

    ISSN:0010-938X

  240. Electrochemical and XPS studies on the passivation behavior of sputter-deposited W-Cr alloys in 12M HCl solution 査読有り

    J. Bhattarai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (2-3) 155-175 1998年2月

    DOI: 10.1016/S0010-938X(97)00106-6  

    ISSN:0010-938X

  241. Mn-W oxide anodes prepared by thermal decomposition for oxygen evolution in seawater electrolysis 査読有り

    K. Izumiya, E. Akiyama, H. Habazaki, N. Kumagai, A. Kawashima, K. Hashimoto

    Materials Transactions, JIM 39 (2) 308-313 1998年2月

    DOI: 10.2320/matertrans1989.39.308  

    ISSN:0916-1821

  242. Passivity and its breakdown on sputter-deposited amorphous Mn-Zr alloys in neutral chloride solutions 査読有り

    A. A. El-Moneim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (2-3) 235-250 1998年2月

    DOI: 10.1016/S0010-938X(97)00123-6  

    ISSN:0010-938X

  243. Electrochemistry and corrosion engineering of global CO2 recycling 査読有り

    K Hashimoto, K Izumiya, K Fujimura, M Yamasaki, E Akiyama, H Habazaki, A Kawashima, M Komori, K Shimamura, N Kumagai

    PROCEEDINGS OF CORROSION 98 - RESEARCH TOPICAL SYMPOSIUM ON CORROSION IN ADVANCED MATERIALS AND SYSTEMS 1-14 1998年

  244. XPS study of transformation of air-formed film to passive film on sputter-deposited Mo-Nb alloys in 12 M HCl

    D Huerta, PY Park, E Akiyama, H Habazaki, A Kawashima, K Asami, K Hashimoto

    PROCEEDINGS OF THE SYMPOSIUM ON PASSIVITY AND ITS BREAKDOWN 97 (26) 770-780 1998年

  245. Spontaneously passivated sputter-deposited alloys with richer corrosion resistance than alloy components 査読有り

    K Hashimoto, J Bhattarai, XY Li, PY Park, JH Kim, E Akiyama, H Habazaki, A Kawashima, K Asami, K Shimamura

    PROCEEDINGS OF THE SYMPOSIUM ON PASSIVITY AND ITS BREAKDOWN 97 (26) 369-383 1998年

  246. Change in pitting susceptibility with alloy heterogeneity induced by crystallization of amorphous alloys 査読有り

    M. Mehmood, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science Forum 289-292 (PART 2) 629-640 1998年

    DOI: 10.4028/www.scientific.net/msf.289-292.629  

    ISSN:0255-5476

    eISSN:1662-9752

  247. Characterization of CO<inf>2</inf> methanation catalysts prepared from amorphous Ni-Zr and Ni-Zr-rare earth element alloys 査読有り

    M. Yamasaki, H. Habazaki, T. Yoshida, M. Komori, K. Shimamura, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Studies in Surface Science and Catalysis 114 451-454 1998年

    DOI: 10.1016/s0167-2991(98)80793-3  

    ISSN:0167-2991

  248. Methanation of carbon dioxide on catalysts derived from amorphous Ni-Zr-rare earth element alloys 査読有り

    H. Habazaki, T. Yoshida, M. Yamasaki, M. Komori, K. Shimamura, E. Akiyama, A. Kawashima, K. Hashimoto

    Studies in Surface Science and Catalysis 114 261-266 1998年

    DOI: 10.1016/s0167-2991(98)80754-4  

    ISSN:0167-2991

  249. Experimental evidence for the critical size of heterogeneity areas for pitting corrosion of Cr-Zr alloys in 6 M HCl 査読有り

    M. Mehmood, B. P. Zhang, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (1) 1-17 1998年1月

    DOI: 10.1016/S0010-938X(97)00107-8  

    ISSN:0010-938X

  250. Electrochemical and XPS studies of the corrosion behavior of sputter-deposited W-Nb alloys in concentrated hydrochloric acid solutions 査読有り

    J. Bhattarai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 40 (1) 19-42 1998年1月

    DOI: 10.1016/S0010-938X(97)00108-X  

    ISSN:0010-938X

  251. Compositional dependence of the CO<inf>2</inf> methanation activity of Ni/ZrO<inf>2</inf> catalysts prepared from amorphous Ni-Zr alloy precursors 査読有り

    Michiaki Yamasaki, Hiroki Habazaki, Takeshi Yoshida, Eiji Akiyama, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto, Mitsuru Komori, Kazuo Shimamura

    Applied Catalysis A: General 163 (1-2) 187-197 1997年12月5日

    DOI: 10.1016/S0926-860X(97)00142-7  

    ISSN:0926-860X

  252. Effects of additional elements on electrocatalytic properties of thermally decomposed manganese Oxide electrodes for oxygen evolution from seawater 査読有り

    K. Izumiya, E. Akiyama, H. Habazaki, N. Kumagai, A. Kawashima, K. Hashimoto

    Materials Transactions, JIM 38 (10) 899-905 1997年10月

    DOI: 10.2320/matertrans1989.38.899  

    ISSN:0916-1821

  253. An angle-resolved XPS study of the in-depth structure of passivated amorphous aluminum alloys 査読有り

    E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (8) 1351-1364 1997年8月

    DOI: 10.1016/S0010-938X(97)00034-6  

    ISSN:0010-938X

  254. An XPS study of passive films on corrosion-resistant Cr-Zr alloys prepared by sputter deposition 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (8) 1365-1380 1997年8月

    DOI: 10.1016/S0010-938X(97)00035-8  

    ISSN:0010-938X

  255. Application of sputter deposition technique to the preparation of amorphous alloy-derived catalysts for NO decomposition 査読有り

    Kota Funayama, Hiroki Habazaki, Eiji Akiyama, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto, Mitsuru Komori

    Materials Transactions, JIM 38 (7) 643-649 1997年7月

    DOI: 10.2320/matertrans1989.38.643  

    ISSN:0916-1821

  256. Characterization of sputter-deposited Ni-Mo and Ni-W alloy electrocatalysts for hydrogen evolution in alkaline solution 査読有り

    Asahi Kawashima, Eiji Akiyama, Hiroki Habazaki, Koji Hashimoto

    Materials Science and Engineering A 226-228 905-909 1997年6月15日

    DOI: 10.1016/s0921-5093(97)80095-0  

    ISSN:0921-5093

  257. Corrosion-resistant amorphous aluminum alloys and structure of passive films 査読有り

    E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 226-228 920-924 1997年6月15日

    DOI: 10.1016/s0921-5093(96)10819-4  

    ISSN:0921-5093

  258. The sulfidation and oxidation behavior of sputter-deposited Cr-refractory metal alloys at high temperatures 査読有り

    K. Ito, H. Habazaki, H. Mitsui, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto, S. Mrowec

    Materials Science and Engineering A 226-228 910-914 1997年6月15日

    DOI: 10.1016/s0921-5093(96)10817-0  

    ISSN:0921-5093

  259. Spontaneously passivated films on sputter-deposited Cr-Ti alloys in 6M HCl solution 査読有り

    X. Y. Li, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (5) 935-948 1997年5月

    DOI: 10.1016/S0010-938X(97)81159-6  

    ISSN:0010-938X

  260. No decomposition catalysts prepared from amorphous Ni-Ta-Pd alloys 査読有り

    M. Komori, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Applied Catalysis B: Environmental 11 (3-4) 243-255 1997年3月21日

    DOI: 10.1016/S0926-3373(97)00049-0  

    ISSN:0926-3373

  261. Energy balance of global CO<inf>2</inf> recycling and amounts of reduction of CO<inf>2</inf> emission 査読有り

    K. Hashimoto, E. Akiyama, H. Habazaki, A. Kawashima, M. Komori, K. Shimamura, N. Kumagai

    Science Reports of the Rerearch Institutes Tohoku University Series A-Physics 43 (2) 153-160 1997年3月

    ISSN:0040-8808

  262. The effect of molybdenum on the stability of passive films formed on amorphous Fe-Cr-Mo-P-C alloys by potentiostatic polarization in deaerated 1 M HCl 査読有り

    M. W. Tan, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (3) 589-603 1997年3月

    DOI: 10.1016/S0010-938X(96)00148-5  

    ISSN:0010-938X

  263. The role of phosphorus in enhancing corrosion resistance of amorphous alloys 査読有り

    K. Hashimoto, B. P. Zhang, B. M. Im, H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami

    Science Reports of the Rerearch Institutes Tohoku University Series A-Physics 43 (2) 145-151 1997年3月

    ISSN:0040-8808

  264. The corrosion behaviour of sputter-deposited amorphous Mn-Ti alloys in 0.5 M NaCl solutions 査読有り

    A. A. El-Moneim, B. P. Zhang, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (2) 305-320 1997年2月

    DOI: 10.1016/S0010-938X(96)00128-X  

    ISSN:0010-938X

  265. Electrochemical and XPS studies of the corrosion behavior of sputter-deposited amorphous W-Zr alloys in 6 and 12 M HCl solutions 査読有り

    J. Bhattarai, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (2) 355-375 1997年2月

    DOI: 10.1016/S0010-938X(97)83351-3  

    ISSN:0010-938X

  266. The roles of tantalum and phosphorus in the corrosion behavior of Ni-Ta-P alloys in 12 M HCl 査読有り

    H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (2) 321-332 1997年2月

    DOI: 10.1016/S0010-938X(96)00129-1  

    ISSN:0010-938X

  267. The microcomposite structure of catalysts prepared by oxidation of amorphous Ni-Ta-Pd alloys 査読有り

    Bo Ping Zhang, Kota Funayama, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Transactions, JIM 38 (2) 123-132 1997年2月

    DOI: 10.2320/matertrans1989.38.123  

    ISSN:0916-1821

  268. The corrosion behavior of Ni-Cr-Mo ternary alloys in hot concentrated sulfuric acids with active carbon (part 2) 査読有り

    Katsuo Sugahara, Yoshio Takizawa, Eiji Akiyama, Koji Hashimoto

    Zairyo to Kankyo/ Corrosion Engineering 46 (11) 702-708 1997年

    出版者・発行元: Japan Society of Corrosion Engineering

    DOI: 10.3323/jcorr1991.46.702  

    ISSN:0917-0480

  269. The Corrosion Behavior of Ni-Cr-Mo Ternary Alloys in Hot Concentrated Sulfuric Acids with Active Carbon (Part 1) 査読有り

    Katsuo Sugahara, Yoshio Takizawa, Eiji Akiyama, Koji Hashimoto

    Zairyo to Kankyo/ Corrosion Engineering 46 (10) 643-650 1997年

    出版者・発行元: Japan Society of Corrosion Engineering

    DOI: 10.3323/jcorr1991.46.643  

    ISSN:0917-0480

  270. Surface activation of manganese oxide electrode for oxygen evolution from seawater 査読有り

    K. Izumiya, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto, N. Kumagai

    Journal of Applied Electrochemistry 27 (12) 1362-1368 1997年

    DOI: 10.1023/A:1018421028624  

    ISSN:0021-891X

  271. The corrosion behaviour of sputter-deposited amorphous Mn-Ta alloys in 0.5 M NaCl solution 査読有り

    A. A. El-Moneim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 39 (10-11) 1965-1979 1997年

    DOI: 10.1016/S0010-938X(97)00089-9  

    ISSN:0010-938X

  272. The role of chromium and molybdenum in passivation of amorphous Fe-Cr-Mo-P-C alloys in de-aerated 1 M HCl 査読有り

    M. W. Tan, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (12) 2137-2151 1996年12月

    DOI: 10.1016/S0010-938X(96)00071-6  

    ISSN:0010-938X

  273. The corrosion behavior of sputter-deposited Mo-Ti alloys in concentrated hydrochloric acid 査読有り

    P. Y. Park, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (10) 1649-1667 1996年10月

    DOI: 10.1016/S0010-938X(96)00041-8  

    ISSN:0010-938X

  274. The corrosion behavior of sputter-deposited Mo-Nb alloys in 12 M HCl solution 査読有り

    P. Y. Park, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (10) 1731-1750 1996年10月

    DOI: 10.1016/S0010-938X(96)00070-4  

    ISSN:0010-938X

  275. Decomposition of nitrogen monoxide over NiTa<inf>2</inf>O<inf>6</inf>-supported palladium catalysts prepared from amorphous alloy precursors 査読有り

    Mitsuru Komori, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Applied Catalysis B: Environmental 9 (1-4) 93-106 1996年9月2日

    DOI: 10.1016/0926-3373(96)90075-2  

    ISSN:0926-3373

  276. The influence of pre-immersion on the potentiostatic polarization behavior of amorphous Fe-Cr-Mo-P-C alloys in DE-aerated 1 M HCl 査読有り

    M. W. Tan, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (9) 1495-1511 1996年9月

    DOI: 10.1016/0010-938X(96)00040-6  

    ISSN:0010-938X

  277. The effects of alloying elements on the passivity of sputter-deposited amorphous Al-Cr-Mo alloys in 1 M HCl 査読有り

    E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (8) 1281-1294 1996年8月

    DOI: 10.1016/0010-938X(96)00017-0  

    ISSN:0010-938X

  278. The corrosion behavior of amorphous and crystalline Ni-10Ta-20P alloys in 12M HCl 査読有り

    H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (8) 1269-1279 1996年8月

    DOI: 10.1016/0010-938X(96)00016-9  

    ISSN:0010-938X

  279. A study of the structure of a passive film using angle-resolved x-ray photo-electron spectroscopy 査読有り

    E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (7) 1127-1140 1996年7月

    DOI: 10.1016/0010-938X(96)81813-0  

    ISSN:0010-938X

  280. The corrosion behavior of sputter-deposited Mo-Ta alloys in 12 M HCl solution 査読有り

    P. Y. Park, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (3) 397-411 1996年3月

    DOI: 10.1016/0010-938X(96)00134-5  

    ISSN:0010-938X

  281. The effect of phosphorus addition on the corrosion behavior of arc-melted Ni-10Ta-P alloys in 12 M HCl 査読有り

    H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (3) 469-485 1996年3月

    DOI: 10.1016/0010-938X(96)00144-8  

    ISSN:0010-938X

  282. Recent progress in corrosion-resistant new alloys prepared by sputter deposition 査読有り

    K. Hashimoto, H. Habazaki, E. Akiyama, H. Yoshioka, J. H. Kim, P. Y. Park, A. Kawashima, K. Asami

    Science Reports of the Rerearch Institutes Tohoku University Series A-Physics 42 (1) 99-105 1996年3月

    ISSN:0040-8808

  283. The corrosion behavior of sputter-deposited amorphous Al-Cr-Mo alloys in 1 M HCl 査読有り

    E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (2) 279-292 1996年2月

    DOI: 10.1016/0010-938X(96)00119-9  

    ISSN:0010-938X

  284. The influences of Mo addition and air exposure on the corrosion behavior of amorphous Fe-8Cr-13P-7C alloy in de-aerated 1 M HCl 査読有り

    M. W. Tan, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 38 (2) 349-365 1996年2月

    DOI: 10.1016/0010-938X(96)00133-3  

    ISSN:0010-938X

  285. Global CO<inf>2</inf> recycling

    Koji Hashimto, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Kazuo Shimamura, Mitsuru Komori, Xaokazu Kumagai

    Zairyo to Kankyo/ Corrosion Engineering 45 (10) 614-620 1996年

    DOI: 10.3323/jcorr1991.45.614  

    ISSN:0917-0480

  286. Total Synthesis and Absolute Configuration of (-)-Sedacryptine 査読有り

    Eiji Akiyama, Masahiro Hirama

    Synlett 1996 (1) 100-102 1996年

    DOI: 10.1055/s-1996-5335  

    ISSN:0936-5214

  287. XPS study of Ni-Mo-B amorphous ultra-fine particles prepared by chemical reduction 査読有り

    Junji Saida, Eiji Akiyama, Koji Hashimoto, Akihisa Inoue, Tsuyoshi Masumoto

    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals 60 (1) 79-83 1996年

    DOI: 10.2320/jinstmet1952.60.1_79  

    ISSN:0021-4876

    eISSN:1880-6880

  288. High temperature sulfidation and oxidation behavior of sputter-deposited al-refractory metal alloys 査読有り

    H. Mitsui, H. Habazaki, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto, S. Mrowec

    Materials Transactions, JIM 37 (3) 379-382 1996年

    DOI: 10.2320/matertrans1989.37.379  

    ISSN:0916-1821

  289. The corrosion behavior of Ni-Ta-5P alloys in concentrated hydrochloric acid 査読有り

    Ho Jin Lee, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Transactions, JIM 37 (3) 383-388 1996年

    DOI: 10.2320/matertrans1989.37.383  

    ISSN:0916-1821

  290. The corrosion behavior of sputter-deposited amorphous WTi alloys in 6 M HCl solution 査読有り

    J. Bhattarai, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (12) 2071-2086 1995年12月

    DOI: 10.1016/0010-938X(95)00120-9  

    ISSN:0010-938X

  291. The corrosion behavior of sputter-deposited Cr-Mo alloys in 12 M HCl solution 査読有り

    P. Y. Park, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (11) 1843-1860 1995年11月

    DOI: 10.1016/0010-938X(95)00090-7  

    ISSN:0010-938X

  292. Effect of cathodic reduction on catalytic activity of amorphous alloy electrodes for electrooxidation of sulfite 査読有り

    T. Mori, A. Kawashima, E. Akiyama, H. Habazaki, K. Asami, K. Hashimoto

    Journal of Applied Electrochemistry 25 (10) 953-961 1995年10月

    DOI: 10.1007/BF00241590  

    ISSN:0021-891X

    eISSN:1572-8838

  293. The effect of microcrystallites in the amorphous matrix on the corrosion behavior of amorphous Fe-8Cr-P alloys 査読有り

    B. M. Im, M. Komori, B. T. Lee, E. Aoyagi, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hiraga, K. Hashimoto

    Corrosion Science 37 (9) 1411-1422 1995年9月

    DOI: 10.1016/0010-938X(95)00048-O  

    ISSN:0010-938X

  294. The effect of air exposure on the corrosion behavior of amorphous Fe-8Cr-Mo-13P-7C alloys in 1 M HCl 査読有り

    M. W. Tan, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (8) 1289-1301 1995年8月

    DOI: 10.1016/0010-938X(95)00035-I  

    ISSN:0010-938X

  295. The effect of phosphorus on the passivation behavior of Ni-10Ta-P alloys in 12 M HCl 査読有り

    H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (8) 1313-1324 1995年8月

    DOI: 10.1016/0010-938X(95)00049-P  

    ISSN:0010-938X

  296. Recent progress in corrosion-resistant metastable alloys 査読有り

    Koji Hashimoto, Pyeong Yeol Park, Jin Han Kim, Hideaki Yoshioka, Hiroyuki Mitsui, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Zbigniew Grzesik, Stanislaw Mrowec

    Materials Science and Engineering A 198 (1-2) 1-10 1995年7月15日

    DOI: 10.1016/0921-5093(95)80052-V  

    ISSN:0921-5093

  297. The effect of phosphorus addition on the corrosion behavior of amorphous Fe-8Cr-P alloys in 9M H<inf>2</inf>SO<inf>4</inf> 査読有り

    B. M. Im, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (5) 709-722 1995年5月

    DOI: 10.1016/0010-938X(95)80004-2  

    ISSN:0010-938X

  298. AMORPHOUS ALLOY ELECTRODES FOR ELECTROOXIDATION OF PROPANE

    H KISHIMOTO, A KAWASHIMA, E AKIYAMA, K ASAMI, K HASHIMOTO

    SCIENCE REPORTS OF THE RESEARCH INSTITUTES TOHOKU UNIVERSITY SERIES A-PHYSICS CHEMISTRY AND METALLURGY 41 (1) 83-88 1995年3月

    ISSN:0040-8808

  299. Change in the surface composition of amorphous FeCrMoPC alloys during air exposure 査読有り

    M. W. Tan, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (2) 331-341 1995年2月

    DOI: 10.1016/0010-938X(94)00141-R  

    ISSN:0010-938X

  300. The corrosion behavior of sputter-deposited amorphous Mo-Zr alloys in 12 M HCl 査読有り

    P. Y. Park, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (2) 307-320 1995年2月

    DOI: 10.1016/0010-938X(94)00139-W  

    ISSN:0010-938X

  301. The effect of phosphorus addition on the corrosion behavior of amorphous Ni-30Ta-P alloys in 12 M HCl 査読有り

    H. J. Lee, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 37 (2) 321-330 1995年2月

    DOI: 10.1016/0010-938X(94)00140-2  

    ISSN:0010-938X

  302. Corrosion behavior of sputter-deposited amorphous Al-Cr-Ti alloys in 1 M HCl 査読有り

    E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science Forum 185-188 809-818 1995年

    DOI: 10.4028/www.scientific.net/msf.185-188.809  

    ISSN:0255-5476

  303. In-door atmospheric corrosion behavior of rapidly quenched amorphous Zr-Cu alloys 査読有り

    K. Asami, E. Akiyama, Y. Murakami, H. M. Kimura, M. Kikuchi, K. Hashimoto

    Materials Science Forum 185-188 789-798 1995年

    DOI: 10.4028/www.scientific.net/msf.185-188.789  

    ISSN:0255-5476

  304. Similarity and difference in roles of chromium and molybdenum in passivating amorphous alloys in concentrated acids 査読有り

    K. Hashimoto, P. Y. Park, J. H. Kim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami

    Materials Science Forum 185-188 779-788 1995年

    DOI: 10.4028/www.scientific.net/msf.185-188.779  

    ISSN:0255-5476

  305. The corrosion behavior of amorphous Fe-8Cr-13P-7C and Fe-8Cr-20P alloys in concentrated sulfuric acid 査読有り

    B. M. Im, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 36 (9) 1537-& 1994年9月

    DOI: 10.1016/0010-938X(94)90051-5  

    ISSN:0010-938X

  306. The corrosion behavior of sputter-deposited amorphous Cr-Ni-Mo alloys in 12 M HCl 査読有り

    P. Y. Park, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 36 (8) 1395-1410 1994年8月

    DOI: 10.1016/0010-938X(94)90188-0  

    ISSN:0010-938X

  307. The corrosion behaviour of sputter-deposited amorphous NiTi alloys in 1 M HCl 査読有り

    Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Science and Engineering A 181-182 (C) 1128-1132 1994年5月15日

    DOI: 10.1016/0921-5093(94)90816-8  

    ISSN:0921-5093

    eISSN:1873-4936

  308. Amorphous alloy catalysts for decomposition of CCl<inf>2</inf>F<inf>2</inf> by hydrolysis 査読有り

    K. Ebidzuka, H. Habazaki, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 181-182 (C) 1091-1094 1994年5月15日

    DOI: 10.1016/0921-5093(94)90808-7  

    ISSN:0921-5093

    eISSN:1873-4936

  309. Amorphous alloy electrodes for anodic oxidation of sulfite 査読有り

    Toshiyuki Mori, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Science and Engineering A 181-182 (C) 1081-1084 1994年5月15日

    DOI: 10.1016/0921-5093(94)90806-0  

    ISSN:0921-5093

    eISSN:1873-4936

  310. Effect of phosphorus on the passivation behavior of amorphous Fe8Cr13P7C alloy in 9M H<inf>2</inf>SO<inf>4</inf> solution 査読有り

    Byung Mo Im, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Science and Engineering A 181-182 (C) 1119-1122 1994年5月15日

    DOI: 10.1016/0921-5093(94)90814-1  

    ISSN:0921-5093

    eISSN:1873-4936

  311. Amorphous Fe-valve metal-Pt group metal alloy catalysts for methanation of CO<inf>2</inf> 査読有り

    Toyoaki Tada, Hiroki Habazaki, Eiji Akiyama, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Materials Science and Engineering A 181-182 (C) 1133-1136 1994年5月15日

    DOI: 10.1016/0921-5093(94)90817-6  

    ISSN:0921-5093

    eISSN:1873-4936

  312. Nitrogen monoxide decomposition catalysts prepared from amorphous Ni-valve metal-Pd alloys 査読有り

    M. Komori, H. Habazaki, E. Akiyama, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 181-182 (C) 1123-1127 1994年5月15日

    DOI: 10.1016/0921-5093(94)90815-X  

    ISSN:0921-5093

    eISSN:1873-4936

  313. Highly corrosion-resistant amorphous CrNiP alloys 査読有り

    B. P. Zhang, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Materials Science and Engineering A 181-182 (C) 1114-1118 1994年5月15日

    DOI: 10.1016/0921-5093(94)90813-3  

    ISSN:0921-5093

    eISSN:1873-4936

  314. An XPS study of the corrosion behavior of sputter-deposited amorphous Cr-Nb and Cr-Ta alloys in 12 M HCl solution 査読有り

    J. H. Kim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 36 (3) 511-523 1994年3月

    DOI: 10.1016/0010-938X(94)90040-X  

    ISSN:0010-938X

  315. Preparation of Protective Multilayer SiO<inf>2</inf> and Al<inf>2</inf>O<inf>3</inf> Coatings on Austenitic Stainless Steel by Sol-Gel Method 査読有り

    Asahi Kawashima, Ying Wang, Eiji Akiyama, Hiroki Habazaki, Katsuhiko Asami, Koji Hashimoto

    Zairyo-to-Kankyo 43 (11) 654-659 1994年

    DOI: 10.3323/jcorr1991.43.654  

    ISSN:0917-0480

    eISSN:1881-9664

  316. The corrosion behavior of sputter-deposited amorphous CrNb and CrTa alloys in 12 M HCl solution 査読有り

    J. H. Kim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 34 (12) 1947-1955 1993年12月

    DOI: 10.1016/0010-938X(93)90052-I  

    ISSN:0010-938X

  317. The corrosion behavior of sputter-deposited amorphous chromium-zirconium alloys in 6 M HCl solution 査読有り

    J. H. Kim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 34 (11) 1817-1827 1993年11月

    DOI: 10.1016/0010-938X(93)90019-D  

    ISSN:0010-938X

  318. Electrochemical and XPS studies of the effects of alloying elements on the corrosion behavior of amorphous FeCrMetalloid alloys in 9 M H<inf>2</inf>SO<inf>4</inf> 査読有り

    Byung Mo Im, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

    Corrosion Science 34 (11) 1829-1839 1993年11月

    DOI: 10.1016/0010-938X(93)90020-H  

    ISSN:0010-938X

  319. The corrosion behavior of sputter-deposited amorphous titanium-chromium alloys in 1 M and 6 M HCl solutions 査読有り

    J. H. Kim, E. Akiyama, H. Yoshioka, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 34 (6) 975-987 1993年6月

    DOI: 10.1016/0010-938X(93)90074-Q  

    ISSN:0010-938X

  320. Decomposition of Nitrogen Monoxide over Amorphous Co&ndash;65Zr Alloys Containing Platinum Group Elements 査読有り

    Komori M., Habazaki H., Akiyama E., Kawashima A., Asami K., Hashimoto K.

    Materials Transactions, JIM 34 (8) 725-731 1993年

    DOI: 10.2320/matertrans1989.34.725  

    ISSN:0916-1821

    eISSN:2432-471X

  321. The effect of magnesium on the corrosion behavior of sputter-deposited amorphous AlMgTi ternary alloys in a neutral chloride solution 査読有り

    E. Akiyama, H. Yoshioka, J. H. Kim, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

    Corrosion Science 34 (1) 27-40 1993年1月

    DOI: 10.1016/0010-938X(93)90256-G  

    ISSN:0010-938X

  322. Corrosion-resistant amorphous surface alloys 査読有り

    K. Hashimoto, N. Kumagai, H. Yoshioka, J. H. Kim, E. Akiyama, H. Habazaki, S. Mrowec, A. Kawashima, K. Asami

    Corrosion Science 35 (1-4) 363-370 1993年

    DOI: 10.1016/0010-938X(93)90168-G  

    ISSN:0010-938X

  323. ゾルーゲル法により316ステンレス鋼上に作製したアルミナ被覆の保護性 査読有り

    王頴, 秋山英二, 幅崎浩樹, 川嶋朝日, 浅見勝彦, 橋本功二

    材料と環境 42 (3) 158-165 1993年

    DOI: 10.3323/jcorr1991.42.158  

    ISSN:0917-0480

    eISSN:1881-9664