-
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
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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 MetalsDOI: 10.2320/matertrans.mt-c2025009
ISSN:1345-9678
eISSN:1347-5320
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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
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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
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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
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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 BVDOI: 10.1016/j.corsci.2025.113386
ISSN:0010-938X
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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 JapanDOI: 10.2355/isijinternational.isijint-2025-340
ISSN:0915-1559
eISSN:1347-5460
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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
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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
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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 MetalsDOI: 10.2320/matertrans.mt-maw2025001
ISSN:1345-9678
eISSN:1347-5320
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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
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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
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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
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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 BVDOI: 10.1016/j.corsci.2025.112843
ISSN:0010-938X
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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 JapanDOI: 10.2355/isijinternational.isijint-2024-268
ISSN:0915-1559
eISSN:1347-5460
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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 LimitedDOI: 10.1080/21663831.2025.2457369
eISSN:2166-3831
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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 LLCDOI: 10.1007/s11661-025-07688-6
ISSN:1073-5623
eISSN:1543-1940
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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 BVDOI: 10.1016/j.actamat.2024.120577
ISSN:1359-6454
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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
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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 BVDOI: 10.1016/j.matchar.2024.114287
ISSN:1044-5803
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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
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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 LLCDOI: 10.1007/s40830-024-00495-9
ISSN:2199-384X
eISSN:2199-3858
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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:ISSN:1340-2625
eISSN:1884-5843
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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
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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 BVDOI: 10.1016/j.corsci.2024.112043
ISSN:0010-938X
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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 AGDOI: 10.3390/met14030346
eISSN:2075-4701
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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 BVDOI: 10.1016/j.ijhydene.2024.02.069
ISSN:0360-3199
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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 JapanDOI: 10.2355/isijinternational.isijint-2023-287
ISSN:0915-1559
eISSN:1347-5460
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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 JapanDOI: 10.2355/isijinternational.isijint-2023-149
ISSN:0915-1559
eISSN:1347-5460
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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
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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
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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
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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 JapanDOI: 10.2355/isijinternational.isijint-2023-130
ISSN:0915-1559
eISSN:1347-5460
-
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
-
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 MetalsDOI: 10.2320/matertrans.mt-c2024008
ISSN:1345-9678
eISSN:1347-5320
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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 BVDOI: 10.1016/j.ijhydene.2023.09.268
ISSN:0360-3199
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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 BVDOI: 10.1016/j.actamat.2023.119536
ISSN:1359-6454
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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
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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 BVDOI: 10.1016/j.msea.2023.145718
ISSN:0921-5093
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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
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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 LLCDOI: 10.1007/s11661-023-07096-8
ISSN:1073-5623
eISSN:1543-1940
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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 MetalsDOI: 10.2464/jilm.73.218
ISSN:0451-5994
eISSN:1880-8018
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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 MetalsDOI: 10.2464/jilm.73.223
ISSN:0451-5994
eISSN:1880-8018
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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
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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 BVDOI: 10.1016/j.tsf.2022.139597
ISSN:0040-6090
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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
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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 MetalsDOI: 10.2320/matertrans.mt-m2022140
ISSN:1345-9678
eISSN:1347-5320
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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 BVDOI: 10.1016/j.ijhydene.2022.11.274
ISSN:0360-3199
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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 BVDOI: 10.1016/j.msea.2022.144486
ISSN:0921-5093
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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
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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
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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 BVDOI: 10.1016/j.ijhydene.2022.09.006
ISSN:0360-3199
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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 BVDOI: 10.1016/j.corsci.2022.110534
ISSN:0010-938X
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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
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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 LLCDOI: 10.1007/s11661-022-06608-2
ISSN:1073-5623
eISSN:1543-1940
-
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
-
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 MetalsDOI: 10.2320/matertrans.mt-c2021006
ISSN:1345-9678
eISSN:1347-5320
-
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 BVDOI: 10.1016/j.scriptamat.2021.114463
ISSN:1359-6462
-
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
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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 MetalsDOI: 10.2320/matertrans.mt-m2021170
ISSN:1345-9678
eISSN:1347-5320
-
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 AGDOI: 10.3390/met12020269
eISSN:2075-4701
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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: WileyISSN:2196-7350
eISSN:2196-7350
-
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
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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 JapanDOI: 10.2355/tetsutohagane.tetsu-2022-043
ISSN:0021-1575
eISSN:1883-2954
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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
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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
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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
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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 JapanDOI: 10.2355/isijinternational.isijint-2021-238
ISSN:0915-1559
eISSN:1347-5460
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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
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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 BVDOI: 10.1016/j.scriptamat.2021.114272
ISSN:1359-6462
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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
-
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
-
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
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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 LLCDOI: 10.1007/s11661-021-06423-1
ISSN:1073-5623
eISSN:1543-1940
-
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
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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 BVDOI: 10.1016/j.ijhydene.2021.07.136
ISSN:0360-3199
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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 BVDOI: 10.1016/j.ijhydene.2021.05.162
ISSN:0360-3199
-
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 BVDOI: 10.1016/j.msea.2021.141479
ISSN:0921-5093
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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
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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 JapanDOI: 10.2355/isijinternational.isijint-2020-260
ISSN:0915-1559
eISSN:1347-5460
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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
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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
-
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
-
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
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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
-
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
-
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
-
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
-
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
-
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
-
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
-
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 JapanDOI: 10.2355/isijinternational.isijint-2020-569
ISSN:0915-1559
eISSN:1347-5460
-
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 JapanDOI: 10.2355/isijinternational.isijint-2020-551
ISSN:0915-1559
eISSN:1347-5460
-
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 JapanDOI: 10.2355/isijinternational.isijint-2020-492
ISSN:0915-1559
eISSN:1347-5460
-
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 JapanDOI: 10.2355/isijinternational.ISIJINT-2020-514
ISSN:0915-1559
eISSN:1347-5460
-
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
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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
-
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 BVDOI: 10.1016/j.corsci.2020.108957
ISSN:0010-938X
-
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
-
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 LLCDOI: 10.1007/s11661-020-06021-7
ISSN:1073-5623
eISSN:1543-1940
-
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 JapanDOI: 10.2355/isijinternational.ISIJINT-2020-223
ISSN:0915-1559
eISSN:1347-5460
-
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
-
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
-
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 BVDOI: 10.1016/j.ijhydene.2020.06.113
ISSN:0360-3199
-
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
-
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
-
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
-
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
-
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
-
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
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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
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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
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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
-
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
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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 -
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
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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
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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
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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
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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
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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
-
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
-
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
-
Cooling and deformation-induced hydrogen desorption in metastable austenitic steels detected by mass spectroscopy. 査読有り
Conference proceedings J03 2018年
-
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
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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 SocietyDOI: 10.1149/2.1421809jes
ISSN:0013-4651
eISSN:1945-7111
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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
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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
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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
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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
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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
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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
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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
-
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
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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
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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 -
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
-
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
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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
ISSN:0947-5117
eISSN:1521-4176
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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ISSN:0385-6917
-
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
-
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 LtdDOI: 10.1016/j.proeng.2017.10.953
ISSN:1877-7058
eISSN:1877-7058
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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
-
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
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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
-
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
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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
-
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
-
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
ISSN:1938-6737
eISSN:1938-5862
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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.ISSN:1938-6737
eISSN:1938-5862
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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
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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
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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
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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
-
Factors affecting hydrogen embrittlement susceptibility of twinning-induced plasticity steels. 査読有り
Proc. 2nd HMnS 2014年
-
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
-
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
-
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
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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
-
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
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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
-
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
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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
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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
-
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
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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
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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 ConstructionISSN:1880-9928
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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
-
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
-
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
-
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
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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
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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
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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
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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
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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
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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
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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
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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
-
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
-
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
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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
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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
-
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
-
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
-
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
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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
-
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
-
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
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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
-
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
-
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
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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
-
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
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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
-
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
-
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
ISSN:0267-0836
-
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
ISSN:0255-5476
eISSN:1662-9752
-
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
ISSN:0255-5476
eISSN:1662-9752
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
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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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
ISSN:0021-891X
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
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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
-
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
-
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
-
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
-
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
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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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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 EngineeringISSN:0917-0480
-
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 EngineeringISSN:0917-0480
-
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
ISSN:0021-891X
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
ISSN:0917-0480
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
ISSN:0917-0480
eISSN:1881-9664
-
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
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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
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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
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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
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Decomposition of Nitrogen Monoxide over Amorphous Co–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
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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
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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
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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
ISSN:0917-0480
eISSN:1881-9664
JP