Stress-controlled hydrogen embrittlement failure in U-bend high-strength steel

Yuki Shibayama, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

International Journal of Hydrogen Energy　88　1010-1016　2024/10/28

DOI： 10.1016/j.ijhydene.2024.09.123 　

ISSN： 0360-3199

Novel Fe-Mo intermetallic composite synthesized via diffusional-displacive mixed-mode transformation

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

Materials Characterization　216　2024/10

DOI： 10.1016/j.matchar.2024.114287 　

ISSN： 1044-5803

Visualization of Microscopic Hydrogen Diffusion in Polycrystalline Pure Ni Using an Ir Complex

Saya Ajito, Hiroshi Kakinuma, Motomichi Koyama, Eiji Akiyama

Zairyo-to-Kankyo　73　(8)　194-199　2024/08/10

DOI： 10.3323/jcorr.73.194 　

ISSN： 0917-0480

eISSN： 1881-9664

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

Hiroshi Kakinuma, Saya Ajito, Motomichi Koyama, Eiji Akiyama

Materia Japan　63　(6)　381-389　2024/06/01

DOI： 10.2320/materia.63.381 　

ISSN： 1340-2625

eISSN： 1884-5843

Mechanism of local hydrogen entry into Fe sheets induced by atmospheric corrosion: Significance of potential, pH, and rust layer thickness Peer-reviewed

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

Corrosion Science　232　112043-112043　2024/05

DOI： 10.1016/j.corsci.2024.112043 　

ISSN： 0010-938X

Effect of Hydrogen on Fatigue Life and Fracture Morphologies of TRIP-Aided Martensitic Steels with Added Nitrogen Peer-reviewed

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

Metals　14　(3)　346-346　2024/03/17

DOI： 10.3390/met14030346 　

eISSN： 2075-4701

Microscopic visualization of hydrogen diffusion in UNS S32750 super duplex stainless steel: Roles of crystal structure and grain size Peer-reviewed

Hiroshi Kakinuma, Saya Ajito, Motomichi Koyama, Eiji Akiyama

International Journal of Hydrogen Energy　59　866-873　2024/03

DOI： 10.1016/j.ijhydene.2024.02.069 　

ISSN： 0360-3199

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 Peer-reviewed

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

ISIJ International　64　(4)　706-713　2024/02/28

DOI： 10.2355/isijinternational.isijint-2023-287 　

ISSN： 0915-1559

eISSN： 1347-5460

Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet Peer-reviewed

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

ISIJ International　64　(4)　637-644　2024/02/28

DOI： 10.2355/isijinternational.isijint-2023-149 　

ISSN： 0915-1559

eISSN： 1347-5460

Effect of Hydrogen on Tensile Shear Strength of Spot-Welded Ultrahigh-Strength TRIP-Aided Martensitic Steel Sheet Peer-reviewed

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

Tetsu-to-Hagane　110　(3)　171-183　2024/02/15

DOI： 10.2355/tetsutohagane.tetsu-2023-077 　

ISSN： 0021-1575

eISSN： 1883-2954

Quantitative Evaluation of the Relationship between Strain and Color Change in Opal Photonic Crystal Films and Application into Complex Specimen Geometries Peer-reviewed

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

Tetsu-to-Hagane　110　(3)　311-320　2024/02/15

DOI： 10.2355/tetsutohagane.tetsu-2023-020 　

ISSN： 0021-1575

eISSN： 1883-2954

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 Peer-reviewed

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

Tetsu-to-Hagane　110　(3)　227-240　2024/02/15

DOI： 10.2355/tetsutohagane.tetsu-2023-062 　

ISSN： 0021-1575

eISSN： 1883-2954

Plasticity-induced Hydrogen Desorptions Associated with Hydrogen-assisted Martensitic Transformation and Deformation Twinning in Austenitic Stainless Steels Peer-reviewed

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

ISIJ International　64　(2)　474-481　2024/01/30

DOI： 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

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

ISIJ International　64　(4)　688-695　2024

DOI： 10.2355/ISIJINTERNATIONAL.ISIJINT-2023-218 　

ISSN： 0915-1559

Visualization of Microscopic Hydrogen Diffusion in Polycrystalline Pure Ni Using an Ir Complex

Saya Ajito, Hiroshi Kakinuma, Motomichi Koyama, Eiji Akiyama

MATERIALS TRANSACTIONS　2024

DOI： 10.2320/matertrans.mt-c2024008 　

ISSN： 1345-9678

eISSN： 1347-5320

超高強度QP-TRIP鋼板の温間V曲げおよび水素脆化特性

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

Tetsu-to-Hagane　2024

DOI： 10.2355/tetsutohagane.tetsu-2023-073 　

ISSN： 0021-1575

eISSN： 1883-2954

Critical role of initial multi-phase microstructure on the phase transformations during hydrogenation in Fe–Mo alloy system Peer-reviewed

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

International Journal of Hydrogen Energy　50　1418-1434　2024/01

DOI： 10.1016/j.ijhydene.2023.09.268 　

ISSN： 0360-3199

In situ visualization of misorientation-dependent hydrogen diffusion at grain boundaries of pure polycrystalline Ni using a hydrogen video imaging system Peer-reviewed

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

Acta Materialia　263　119536-119536　2024/01

DOI： 10.1016/j.actamat.2023.119536 　

ISSN： 1359-6454

Temperature dependence of hydrogen-assisted damage evolution and fracture behavior in TRIP-aided bainitic ferrite steel Peer-reviewed

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

Materials Science and Engineering: A　886　145663　2023/10/17

DOI： 10.1016/j.msea.2023.145663 　

ISSN： 0921-5093

Mesoscale quantification of grain boundary character and local plasticity in hydrogen-assisted intergranular and intergranular-like cracking paths in tempered martensitic steel Peer-reviewed

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

Materials Science and Engineering: A　145718-145718　2023/09

DOI： 10.1016/j.msea.2023.145718 　

ISSN： 0921-5093

Environment-assisted cracking of AZ31 magnesium alloy in a borate buffer solution containing ammonium thiocyanate under various potentials Peer-reviewed

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

Corrosion Science　218　111195　2023/07/01

DOI： 10.1016/j.corsci.2023.111195 　

ISSN： 0010-938X

Hydrogen-Induced Delayed Fracture in a 1.5 GPa Dual-Phase Steel via Coalescence of Surface and Sub-surface Cracks Peer-reviewed

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

Metallurgical and Materials Transactions A　54　(8)　2989-2989　2023/05/31

DOI： 10.1007/s11661-023-07096-8 　

ISSN： 1073-5623

eISSN： 1543-1940

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　2023/05/15

DOI： 10.2464/jilm.73.218 　

ISSN： 0451-5994

eISSN： 1880-8018

Effects of strain rate and internal hydrogen on tensile properties of Al-10%Mg alloys Peer-reviewed

Tomohiko Hojo, Mamoru Kikuchi, Eiji Akiyama

Journal of Japan Institute of Light Metals　73　(5)　223-229　2023/05/15

DOI： 10.2464/jilm.73.223 　

ISSN： 0451-5994

eISSN： 1880-8018

Martensite Boundary Characteristics on Cycle- and Time-Dependent Fatigue Crack Growth Paths of Tempered Lath Martensitic Steels in a 90 MPa Gaseous Hydrogen Atmosphere Peer-reviewed

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

Metallurgical and Materials Transactions A　54　(7)　2512-2518　2023/04

DOI： 10.1007/s11661-023-07041-9 　

ISSN： 1073-5623

Influence of post-oxidizing treatment on passivation performance on the spin-coated titanium oxide films on crystalline silicon Peer-reviewed

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

Thin Solid Films　764　139597-139597　2023/01

DOI： 10.1016/j.tsf.2022.139597 　

ISSN： 0040-6090

Transformation-Induced Microcracks and Their Arrest with Different Deformation Temperatures in a Medium Mn Steel Peer-reviewed

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

Metallurgical and Materials Transactions A　54　(1)　153-166　2023/01

DOI： 10.1007/s11661-022-06855-3 　

ISSN： 1073-5623

eISSN： 1543-1940

Cr Effects on the Local Plasticity Evolution and Fracture Behaviors of Ni–Cr Alloys Tensile-Tested under Hydrogen Charging Peer-reviewed

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

MATERIALS TRANSACTIONS　64　(1)　212-219　2023/01/01

DOI： 10.2320/matertrans.mt-m2022140 　

ISSN： 1345-9678

eISSN： 1347-5320

Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe–Mn–Si–Cr alloy Peer-reviewed

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　2022/12

DOI： 10.1016/j.ijhydene.2022.11.274 　

ISSN： 0360-3199

Mechanical loading effect on the hydrogen uptake of tempered martensite steel: Elastic strain effect vs. plastic strain effect Peer-reviewed

Yota Masuda, Motomichi Koyama, Hiroshi Kakinuma, Eiji Akiyama

Materials Science and Engineering: A　862　144486-144486　2022/12

DOI： 10.1016/j.msea.2022.144486 　

ISSN： 0921-5093

Mixed type brittle fracture in 1.5 GPa dual-phase steel via {100} ferrite cleavage cracking Peer-reviewed

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

Materials Science and Engineering: A　857　144021　2022/11/01

DOI： 10.1016/j.msea.2022.144021 　

ISSN： 0921-5093

Quantitative Evaluation of the Relationship between Strain and Color Change in Opal Photonic Crystal Films and Application into Complex Specimen Geometries Peer-reviewed

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

ISIJ International　62　(10)　2061-2068　2022/10

DOI： 10.2355/isijinternational.isijint-2022-054 　

ISSN： 0915-1559

eISSN： 1347-5460

In situ 2D mapping of hydrogen entry into an Fe sheet under a droplet of NaCl solution using a hydrogenochromic sensor Peer-reviewed

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

International Journal of Hydrogen Energy　47　(90)　38468-38476　2022/09

DOI： 10.1016/j.ijhydene.2022.09.006 　

ISSN： 0360-3199

Simultaneous observations of the corrosion behavior of an Fe sheet and the associated hydrogen distribution therein employing a hydrogenochromic sensor Peer-reviewed

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

Corrosion Science　206　110534-110534　2022/09

DOI： 10.1016/j.corsci.2022.110534 　

ISSN： 0010-938X

Hydrogen-accelerated fatigue crack growth of equiatomic Fe–Cr–Ni–Mn–Co high-entropy alloy evaluated by compact tension testing Peer-reviewed

Motomichi Koyama, Shunsuke Mizumachi, Eiji Akiyama, Kaneaki Tsuzaki

Materials Science and Engineering A　848　2022/07/19

DOI： 10.1016/j.msea.2022.143394 　

ISSN： 0921-5093

Factors Distinguishing Hydrogen-Assisted Intergranular and Intergranular-Like Fractures in a Tempered Lath Martensitic Steel Peer-reviewed

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

Metallurgical and Materials Transactions A　53　(5)　1645-1658　2022/05

DOI： 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 Peer-reviewed

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

Materials Science and Engineering: A　842　143070-143070　2022/05

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 Peer-reviewed

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　2022/04/01

DOI： 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 Peer-reviewed

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

Scripta Materialia　210　114463-114463　2022/03

DOI： 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 Peer-reviewed

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

Materialia　21　101317-101317　2022/03

DOI： 10.1016/j.mtla.2022.101317 　

ISSN： 2589-1529

eISSN： 2589-1529

Hydrogen Embrittlement Behavior of Pure Ni and Ni–20Cr Alloy with Different Grain Sizes Peer-reviewed

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

MATERIALS TRANSACTIONS　63　(2)　247-256　2022/02/01

DOI： 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 Peer-reviewed

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

Metals　12　(2)　269-269　2022/01/31

DOI： 10.3390/met12020269 　

eISSN： 2075-4701

Real‐Time Visualization of Hydrogen Distribution in Metals Using Polyaniline: An Ultrasensitive Hydrogenochromic Sensor Peer-reviewed

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

Advanced Materials Interfaces　9　(18)　2101984-2101984　2022/01/29

DOI： 10.1002/admi.202101984 　

ISSN： 2196-7350

eISSN： 2196-7350

V-Bendability of Ultrahigh-Strength Low Alloy TRIP-Aided Steel Sheets with Bainitic Ferrite Matrix Peer-reviewed

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

ISIJ International　62　(1)　247-256　2022/01/15

DOI： 10.2355/isijinternational.isijint-2021-092 　

ISSN： 0915-1559

eISSN： 1347-5460

Effects of Ammonium Thiocyanate and pH of Aqueous Solutions on Hydrogen Absorption into Iron under Cathodic Polarization Peer-reviewed

Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

Tetsu-to-Hagane　108　(11)　857-863　2022

DOI： 10.2355/tetsutohagane.tetsu-2022-043 　

ISSN： 0021-1575

eISSN： 1883-2954

Multi-Probe Characterization of Plasticity Heterogeneity: Requirement of Alloy Design Considering Dislocation Planarity for Developing Crack-Resistant Ni–Cr Alloys Peer-reviewed

Taein Kong, Motomichi Koyama, Misaho Yamamura, Eiji Akiyama

MATERIALS TRANSACTIONS　63　(1)　88-91　2022/01/01

DOI： 10.2320/matertrans.mt-m2021191 　

ISSN： 1345-9678

eISSN： 1347-5320

Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet Peer-reviewed

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

Tetsu-to-Hagane　108　(5)　316-324　2022

DOI： 10.2355/tetsutohagane.tetsu-2021-096 　

ISSN： 0021-1575

eISSN： 1883-2954

Cr Effects on the Local Plasticity Evolution and Fracture Behaviors of Ni-Cr Alloys Tensile-Tested under Hydrogen Charging Peer-reviewed

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

Journal of the Japan Institute of Metals and Materials　86　(5)　77-84　2022

DOI： 10.2320/jinstmet.j2021054 　

ISSN： 0021-4876

eISSN： 1880-6880 2433-7501

Cracking Process in Delayed Fracture of High-Strength Steel after Long Atmospheric Exposure Peer-reviewed

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

ISIJ International　2022

DOI： 10.2355/isijinternational.isijint-2021-238 　

ISSN： 0915-1559

eISSN： 1347-5460

Mechanisms of hydrogen embrittlement in high-strength aluminum alloys containing coherent or incoherent dispersoids Peer-reviewed

Mahdieh Safyari, Masoud Moshtaghi, Tomohiko Hojo, Eiji Akiyama

Corrosion Science　194　109895-109895　2022/01

DOI： 10.1016/j.corsci.2021.109895 　

ISSN： 0010-938X

eISSN： 1879-0496

Pre-straining alters hydrogen-assisted cracking site and local hydrogen diffusivity in a nitrogen-doped duplex steel Peer-reviewed

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

Scripta Materialia　207　114272-114272　2022/01

DOI： 10.1016/j.scriptamat.2021.114272 　

ISSN： 1359-6462

Hydrogenation treatment under several gigapascals assists diffusionless transformation in a face-centered cubic steel Peer-reviewed

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

Scientific Reports　11　(1)　2021/12

DOI： 10.1038/s41598-021-98938-1 　

ISSN： 2045-2322

eISSN： 2045-2322

Corrosion Monitoring of Carbon Steel in Non-Irradiated, Humidity-Controlled Environments Simulating Gamma-Ray Irradiation Peer-reviewed

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

Zairyo-to-Kankyo　70　(11)　358-364　2021/11/10

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 Peer-reviewed

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

ISIJ International　61　(10)　2644-2653　2021/10/15

DOI： 10.2355/isijinternational.isijint-2021-210 　

ISSN： 0915-1559

eISSN： 1347-5460

Hierarchical Characteristics of Hydrogen-Assisted Crack Growth and Microstructural Strain Evolution in Tempered Martensitic Steels: Case of Quasi-cleavage Fracture Peer-reviewed

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

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

DOI： 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　2021/09

DOI： 10.1016/j.mlblux.2021.100078 　

ISSN： 2590-1508

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 Peer-reviewed

Haoyu Wang, Motomichi Koyama, Tomohiko Hojo, Eiji Akiyama

International Journal of Hydrogen Energy　46　(65)　33028-33038　2021/09

DOI： 10.1016/j.ijhydene.2021.07.136 　

ISSN： 0360-3199

Strain rate sensitivity of hydrogen-assisted ε-martensitic transformation and associated hydrogen embrittlement in high-Mn steel Peer-reviewed

Chunxi Hao, Motomichi Koyama, Saya Ajito, Eiji Akiyama

International Journal of Hydrogen Energy　46　(53)　27221-27233　2021/08

DOI： 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 Peer-reviewed

Yutao Zhou, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

Materials Science and Engineering: A　819　141479-141479　2021/07

DOI： 10.1016/j.msea.2021.141479 　

ISSN： 0921-5093

Effects of Silicon and Manganese Contents on V-Bending in High-Strength TRIP-Aided Dual-Phase Steel Sheets with Polygonal Ferrite Matrix Peer-reviewed

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

ISIJ International　61　(6)　1980-1989　2021/06/15

DOI： 10.2355/isijinternational.isijint-2020_719 　

ISSN： 0915-1559

eISSN： 1347-5460

An Evaluation Method for Hydrogen Embrittlement of High Strength Steel Sheets Using U-bend Specimens Peer-reviewed

Yuki Shibayama, Tomohiko Hojo, Eiji Akiyama

ISIJ International　61　(4)　1104-1111　2021/04/15

DOI： 10.2355/isijinternational.isijint-2020-260 　

ISSN： 0915-1559

eISSN： 1347-5460

Effect of hydrogen charging time on hydrogen blister and hydrogen-induced cracking of pure iron Peer-reviewed

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

Corrosion Science　181　109200　2021/04

DOI： 10.1016/j.corsci.2020.109200 　

ISSN： 0010-938X

Effects of matrix structure and nitrogen content on fatigue properties of ultrahigh-strength low alloy trip-aided steels Peer-reviewed

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

ISIJ International　61　(2)　591-598　2021/02/15

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 Peer-reviewed

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

ISIJ International　61　(2)　608-616　2021/02/15

DOI： 10.2355/isijinternational.ISIJINT-2020-558 　

ISSN： 0915-1559

Hydrogen Embrittlement Behavior of Pure Ni and Ni-20Cr Alloy with Different Grain Sizes Peer-reviewed

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

Journal of the Japan Institute of Metals and Materials　85　(2)　49-58　2021/02/01

DOI： 10.2320/jinstmet.j2020036 　

ISSN： 0021-4876

eISSN： 1880-6880 2433-7501

Effect of Hydrogen on Spot Welded Tensile Properties in Automotive Ultrahigh Strength TRIP-aided Martensitic Steel Sheet Peer-reviewed

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

Tetsu-to-Hagane　107　(2)　175-184　2021/02

DOI： 10.2355/tetsutohagane.tetsu-2020-069 　

ISSN： 0021-1575

eISSN： 1883-2954

Effects of Si and Mn contents on V-bending in high strength TRIP-aided dual-phase steel sheets with polygonal ferrite matrix Peer-reviewed

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　107　(2)　154-164　2021/02/01

DOI： 10.2355/tetsutohagane.TETSU-2020-031 　

ISSN： 0021-1575

V-bendability of ultrahigh strength low alloy trip-aided steel sheets with bainitic ferrite matrix Peer-reviewed

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

Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan　107　(2)　165-174　2021/02/01

DOI： 10.2355/tetsutohagane.TETSU-2020-043 　

ISSN： 0021-1575

Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel Peer-reviewed

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

International Journal of Hydrogen Energy　46　(2)　2716-2728　2021/01/06

DOI： 10.1016/j.ijhydene.2020.10.152 　

ISSN： 0360-3199

Availability of Opal Photonic Crystal Films for Visualizing Heterogeneous Strain Evolution in Steels: Example of Lüders Deformation Peer-reviewed

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

Tetsu-to-Hagane　107　(8)　681-686　2021

DOI： 10.2355/tetsutohagane.tetsu-2021-028 　

ISSN： 0021-1575

eISSN： 1883-2954

Effects of Residual Stress on Hydrogen Embrittlement of a Stretch-Formed Tempered Martensitic Steel Sheet Peer-reviewed

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

Tetsu-to-Hagane　107　(9)　760-768　2021

DOI： 10.2355/tetsutohagane.tetsu-2021-055 　

ISSN： 0021-1575

eISSN： 1883-2954

Effects of Matrix Structure and Nitrogen Content on Fatigue Properties of Ultrahigh-Strength Low Alloy TRIP-Aided Steels

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

Tetsu-to-Hagane　107　(8)　672-680　2021

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 Peer-reviewed

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

DOI： 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 Peer-reviewed

Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Eiji Akiyama

ISIJ International　61　(4)　1209-1214　2021

DOI： 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 Peer-reviewed

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

DOI： 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 Peer-reviewed

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

ISIJ International　61　(4)　1309-1314　2021

DOI： 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 Invited Peer-reviewed

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

Advanced Structured Materials　143　1-18　2021

DOI： 10.1007/978-3-030-66948-5_1 　

ISSN： 1869-8433

eISSN： 1869-8441

Activation energy of hydrogen desorption from high-performance titanium oxide carrier-selective contacts with silicon oxide interlayers Peer-reviewed

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

Current Applied Physics　21　36-42　2021/01

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 Peer-reviewed

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

Corrosion Science　177　108957-108957　2020/12

DOI： 10.1016/j.corsci.2020.108957 　

ISSN： 0010-938X

Role of mill scale on corrosion behavior of steel rebars in mortar Peer-reviewed

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

Corrosion Science　177　108995　2020/12

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 Peer-reviewed

Chunxi Hao, Motomichi Koyama, Eiji Akiyama

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

DOI： 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 Peer-reviewed

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

ISIJ International　60　(11)　2604-2608　2020/11/15

DOI： 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 Peer-reviewed

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　2020/11/01

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 Peer-reviewed

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

International Journal of Hydrogen Energy　45　(51)　27920-27928　2020/10/16

DOI： 10.1016/j.ijhydene.2020.07.036 　

ISSN： 0360-3199

Application of an iridium complex for detecting hydrogen permeation through pure iron Peer-reviewed

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

International Journal of Hydrogen Energy　45　(46)　25580-25586　2020/09/21

DOI： 10.1016/j.ijhydene.2020.06.113 　

ISSN： 0360-3199

Hydrogen Enhances Shape Memory Effect of a Ferrous Face-Centered Cubic Alloy Peer-reviewed

Motomichi Koyama, Chunxi Hao, Eiji Akiyama, Kaneaki Tsuzaki

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science　51　(9)　4439-4441　2020/09/01

DOI： 10.1007/s11661-020-05886-y 　

ISSN： 1073-5623

Hydrogen embrittlement resistance of pre-strained ultra-high-strength low alloy TRIP-aided steel Peer-reviewed

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　2020/08/01

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 Peer-reviewed

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

Materials Science and Engineering A　791　2020/07/22

DOI： 10.1016/j.msea.2020.139750 　

ISSN： 0921-5093

Corrosion Monitoring in Humidity-Controlled Environment Simulating Gamma Ray Irradiation Peer-reviewed

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

Zairyo-to-Kankyo　69　(4)　107-111　2020/04/10

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 Peer-reviewed

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

Materials Science and Engineering A　782　139250　2020/04

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 Peer-reviewed

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

DOI： 10.2355/TETSUTOHAGANE.TETSU-2020-012 　

ISSN： 0021-1575

Strain rate and hydrogen effects on crack growth from a notch in a Fe-high-Mn steel containing 1.1 wt% solute carbon Peer-reviewed

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

International Journal of Hydrogen Energy　45　(1)　1125-1139　2020/01/01

DOI： 10.1016/j.ijhydene.2019.10.227 　

ISSN： 0360-3199

Effects of alloying elements addition on delayed fracture properties of ultra high-strength trip-aided martensitic steels Peer-reviewed

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

Metals　10　(1)　10.3390/met10010006　2020/01

DOI： 10.3390/met10010006 　

eISSN： 2075-4701

Transformation-assisted hydrogen desorption during deformation in steels: Examples of α′- and ε-Martensite Peer-reviewed

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

International Journal of Hydrogen Energy　44　(57)　30472-30477　2019/11/15

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 Peer-reviewed

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

International Journal of Hydrogen Energy　44　(47)　26028-26035　2019/10/04

DOI： 10.1016/j.ijhydene.2019.07.254 　

ISSN： 0360-3199

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　2019/09/01

DOI： 10.1149/MA2019-02/10/824 　

Effect of strain rate on the hydrogen embrittlement property of ultra high-strength low-alloy trip-aided steel Peer-reviewed

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

Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan　105　(4)　33-41　2019/04

DOI： 10.2355/tetsutohagane.TETSU-2018-087 　

ISSN： 0021-1575

Hydrogen embrittlement behavior of Inconel 718 alloy at room temperature Peer-reviewed

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

Journal of Materials Science and Technology　35　(4)　499-502　2019/04

DOI： 10.1016/j.jmst.2018.10.002 　

ISSN： 1005-0302

Lowering Strain Rate Simultaneously Enhances Carbon- and Hydrogen-Induced Mechanical Degradation in an Fe-33Mn-1.1C Steel Peer-reviewed

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　2019/03/15

DOI： 10.1007/s11661-018-5080-7 　

ISSN： 1073-5623

Hydrogen embrittlement of high strength steam turbine last stage blade steels: Comparison between PH17-4 steel and PH13-8Mo steel Peer-reviewed

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

Materials Science and Engineering A　742　353-363　2019/01/10

DOI： 10.1016/j.msea.2018.10.086 　

ISSN： 0921-5093

An evaluation method for hydrogen embrittlement of high strength steel sheets using u-bend specimens Peer-reviewed

Yuki Shibayama, Tomohiko Hojo, Eiji Akiyama

Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan　105　(9)　73-80　2019

DOI： 10.2355/tetsutohagane.TETSU-2019-036 　

ISSN： 0021-1575

Tensile mechanical properties and fracture behaviors of nickel-based superalloy 718 in the presence of hydrogen Peer-reviewed

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　2018/10/25

DOI： 10.1016/j.ijhydene.2018.08.179 　

ISSN： 0360-3199

Microstructural and crystallographic study of hydrogen-assisted cracking in high strength PSB1080 steel Peer-reviewed

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

International Journal of Hydrogen Energy　43　(37)　17898-17911　2018/09/13

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 Peer-reviewed

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

Materials Science and Engineering A　717　78-84　2018/02/21

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. Peer-reviewed

Motomichi Koyama, N. Terao, T. Hojo, E.Akiyama, Kaneaki Tsuzaki

Conference proceedings　J03　2018

Interstitial carbon enhanced corrosion resistance of Fe-33Mn-xC austenitic steels: Inhibition of anodic dissolution Peer-reviewed

Aya Chiba, Motomichi Koyama, Eiji Akiyama, Toshiyasu Nishimura

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

DOI： 10.1149/2.0661802jes 　

ISSN： 0013-4651

eISSN： 1945-7111

Effects of oxygen pressure and chloride ion concentration on corrosion of iron in mortar exposed to pressurized humid oxygen gas Peer-reviewed

Kotaro Doi, Sachiko Hiromoto, Hideki Katayama, Eiji Akiyama

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

DOI： 10.1149/2.1421809jes 　

ISSN： 0013-4651

eISSN： 1945-7111

Hyperbaric-oxygen accelerated corrosion test for iron in cement paste and mortar Peer-reviewed

Kotaro Doi, Sachiko Hiromoto, Eiji Akiyama

Materials Transactions　59　(6)　927-934　2018

DOI： 10.2320/matertrans.M2018029 　

ISSN： 1345-9678

Effect of strain rate on the hydrogen embrittlement property of ultra high-strength low alloy TRIP-aided steel Peer-reviewed

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

ISIJ International　58　(4)　751-759　2018

DOI： 10.2355/isijinternational.ISIJINT-2017-576 　

ISSN： 0915-1559

Size and distribution of micropores and voids in 5052 aluminum alloys during tensile deformation Peer-reviewed

Tomohiko Hojo, Mamoru Kikuchi, Kazuyuki Shimizu, Hiroyuki Toda, Akihisa Takeuchi, Eiji Akiyama

Keikinzoku/Journal of Japan Institute of Light Metals　68　(11)　630-634　2018

DOI： 10.2464/jilm.68.630 　

ISSN： 0451-5994

Hyperbaric-oxygen accelerated corrosion test of iron in cement paste and mortar Peer-reviewed

Kotaro Doi, Sachiko Hiromoto, Eiji Akiyama

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals　82　(1)　1-7　2018

DOI： 10.2320/jinstmet.J2017030 　

ISSN： 0021-4876

Hydrogen embrittlement properties of nitrogen added ultra-high-strength TRIP-aided martensitic steels evaluated by using conventional strain rate technique Peer-reviewed

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

Procedia Manufacturing　15　1581-1587　2018

DOI： 10.1016/j.promfg.2018.07.309 　

eISSN： 2351-9789

Room-temperature blue brittleness of Fe-Mn-C austenitic steels Peer-reviewed

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

Scripta Materialia　141　20-23　2017/12

DOI： 10.1016/j.scriptamat.2017.07.017 　

ISSN： 1359-6462

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　2017/11/01

Effect of heat treatment on hydrogen-assisted fracture behavior of PH13-8Mo steel Peer-reviewed

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

Corrosion Science　128　198-212　2017/11

DOI： 10.1016/j.corsci.2017.09.018 　

ISSN： 0010-938X

eISSN： 1879-0496

Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation Peer-reviewed

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　2017/09/02

DOI： 10.1080/02670836.2017.1299276 　

ISSN： 0267-0836

eISSN： 1743-2847

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

Kotaro Doi, Sachiko Hiromoto, Eiji Akiyama

ECS Meeting Abstracts　2017/09/01

DOI： 10.1149/MA2017-02/13/798 　

Warm tempforming effect on the hydrogen embrittlement of 1.8-GPa-class ultra-high-strength low-alloy steel Peer-reviewed

Yuuji Kimura, Tadanobu Inoue, Eiji Akiyama

Materials Science and Engineering A　703　(8)　503-512　2017/08/04

DOI： 10.1016/j.msea.2017.07.091 　

ISSN： 0921-5093

eISSN： 1873-4936

Overview of hydrogen embrittlement in high-Mn steels Peer-reviewed

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

International Journal of Hydrogen Energy　42　(17)　12706-12723　2017/04

DOI： 10.1016/j.ijhydene.2017.02.214 　

ISSN： 0360-3199

eISSN： 1879-3487

Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy Peer-reviewed

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

Materials and Corrosion　68　(3)　306-310　2017/03/01

DOI： 10.1002/maco.201609104 　

ISSN： 0947-5117

eISSN： 1521-4176

Hydrogen Entry into a High Strength Steel with Tribocorrosion in Acidic Solution Peer-reviewed

DOI Kotaro, AKIYAMA Eiji

Transactions of Japan Society of Spring Engineers　2017　(62)　9-14　2017

DOI： 10.5346/trbane.2017.9 　

ISSN： 0385-6917

Electrochemical hydrogen permeation test under controlled temperature and humidity after outdoor exposure at Beijing, Chongqing and Okinawa Peer-reviewed

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

Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan　103　(2)　93-100　2017

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 Peer-reviewed

Tomohiko Hojo, Yuko Ukai, Eiji Akiyama

Procedia Engineering　207　1868-1873　2017

DOI： 10.1016/j.proeng.2017.10.953 　

ISSN： 1877-7058

eISSN： 1877-7058

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　2016/10/01

Martensitic transformation-induced hydrogen desorption characterized by utilizing cryogenic thermal desorption spectroscopy during cooling Peer-reviewed

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

Scripta Materialia　122　50-53　2016/09/01

DOI： 10.1016/j.scriptamat.2016.05.012 　

ISSN： 1359-6462

Electrochemical hydrogen permeation tests under galvanostatic hydrogen charging conditions conventionally used for hydrogen embrittlement study Peer-reviewed

Eiji Akiyama, Songjie Li

Corrosion Reviews　34　(1-2)　103-112　2016/03/01

DOI： 10.1515/corrrev-2015-0049 　

ISSN： 0334-6005

eISSN： 2191-0316

Hydrogen-assisted damage in austenite/martensite dual-phase steel Peer-reviewed

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

Philosophical Magazine Letters　96　(1)　9-18　2016/01/02

DOI： 10.1080/09500839.2015.1130275 　

ISSN： 0950-0839

eISSN： 1362-3036

Electrochemical hydrogen permeation test under controlled temperature and humidity after outdoor exposure at Beijing, Chongqing and Okinawa Peer-reviewed

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

ISIJ International　56　(3)　436-443　2016

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 Peer-reviewed

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

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 Peer-reviewed

K. Doi, E. Akiyama, M. Hayakawa

ECS Transactions　75　(29)　33-41　2016

DOI： 10.1149/07529.0033ecst 　

ISSN： 1938-6737

eISSN： 1938-5862

Electrochemical hydrogen permeation tests under conventional potentiostatic hydrogen charging conditions for hydrogen embrittlement study Peer-reviewed

E. Akiyama, S. Li

ECS Transactions　75　(29)　23-31　2016

DOI： 10.1149/07529.0023ecst 　

ISSN： 1938-6737

eISSN： 1938-5862

Hydrogen visualization in steels using Ag decoration method Peer-reviewed

Eiji Akiyama, Saburo Matsuoka

Materials Transactions　56　(6)　793-797　2015

DOI： 10.2320/matertrans.M2014431 　

ISSN： 1345-9678

eISSN： 1347-5320

Spatially and kinetically resolved mapping of hydrogen in a twinning-induced plasticity steel by use of Scanning Kelvin Probe Force Microscopy Peer-reviewed

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

DOI： 10.1149/2.0131512jes 　

ISSN： 0013-4651

eISSN： 1945-7111

Hydrogen-assisted decohesion and localized plasticity in dual-phase steel Peer-reviewed

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

Acta Materialia　70　174-187　2014/05/15

DOI： 10.1016/j.actamat.2014.01.048 　

ISSN： 1359-6454

eISSN： 1873-2453

Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe-Mn-Al-C light weight austenitic steel Peer-reviewed

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

International Journal of Hydrogen Energy　39　(9)　4634-4646　2014/03/18

DOI： 10.1016/j.ijhydene.2013.12.171 　

ISSN： 0360-3199

eISSN： 1879-3487

Factors affecting hydrogen embrittlement susceptibility of twinning-induced plasticity steels. Peer-reviewed

Motomichi Koyama, E. Akiyama, D. Raabe, Kaneaki Tsuzaki

Proc. 2nd HMnS　2014

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 Peer-reviewed

小山元道, 秋山英二, 津﨑兼彰

鉄と鋼　100　1132-1139　2014

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 Peer-reviewed

小山元道, 秋山英二, 津﨑兼彰

鉄と鋼　100　662-667　2014

Effects of static and dynamic strain aging on hydrogen embrittlement in twip steels containing Al Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

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

DOI： 10.2355/tetsutohagane.100.1132 　

ISSN： 0021-1575

eISSN： 1883-2954

Hydrogen embrittlement in Al-added twinning-induced plasticity steels evaluated by tensile tests during hydrogen charging Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

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

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 Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

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

DOI： 10.2355/tetsutohagane.100.1123 　

ISSN： 0021-1575

eISSN： 1883-2954

Comparison of constant load, SSRT and CSRT methods for hydrogen embrittlement evaluation using round bar specimens of high strength steels Peer-reviewed

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

Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan　100　(10)　1298-1305　2014

DOI： 10.2355/tetsutohagane.100.1298 　

ISSN： 0021-1575

eISSN： 1883-2954

Hydrogen visualization in steels using ag decoration method Peer-reviewed

Eiji Akiyama, Saburo Matsuoka

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

DOI： 10.2320/jinstmet.JC201311 　

ISSN： 0021-4876

eISSN： 1880-6880

Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel Peer-reviewed

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

Corrosion Science　75　345-353　2013/10

DOI： 10.1016/j.corsci.2013.06.018 　

ISSN： 0010-938X

eISSN： 1879-0496

Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki, Dierk Raabe

Acta Materialia　61　(12)　4607-4618　2013/07

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 Peer-reviewed

Norio Maruyama, Sachiko Hiromoto, Eiji Akiyama, Morihiko Nakamura

Science and Technology of Advanced Materials　14　(2)　025002　2013/04

DOI： 10.1088/1468-6996/14/2/025002 　

ISSN： 1468-6996

Studies of evaluation of hydrogen embrittlement property of high-strength steels with consideration of the effect of atmospheric corrosion Peer-reviewed

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　2013/03

DOI： 10.1007/s11661-012-1403-2 　

ISSN： 1073-5623

eISSN： 1543-1940

Stochastic Evaluation of Hydrogen Uptake Affecting the Delayed Fracture of High Strength Bolts Peer-reviewed

MATSUOKA Kazumi, UNO Nobuyoshi, AKIYAMA Eiji, HAGIHARA Yukito, MATSUYAMA Shinsaku, HARADA Hiroaki

Kou kouzou rombunshuu　20　(79)　79_29-79_40　2013

DOI： 10.11273/jssc.20.79_29 　

ISSN： 1880-9928

Hydrogen entry behavior into iron and steels under atmospheric corrosion Peer-reviewed

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

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 Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

ISIJ International　53　(7)　1268-1274　2013

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 Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

ISIJ International　53　(6)　1089-1096　2013

DOI： 10.2355/isijinternational.53.1089 　

ISSN： 0915-1559

Hydrogen entry behavior into iron and steel under atmospheric corrosion Peer-reviewed

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

ISIJ International　53　(6)　1062-1069　2013

DOI： 10.2355/isijinternational.53.1062 　

ISSN： 0915-1559

eISSN： 1347-5460

The use of renewable energy in the form of methane via electrolytic hydrogen generation Peer-reviewed

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

DOI： 10.2478/v10172-012-0179-0 　

ISSN： 1733-3490

Effect of hydrogen content on the embrittlement in a Fe-Mn-C twinning-induced plasticity steel Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

Corrosion Science　59　277-281　2012/06

DOI： 10.1016/j.corsci.2012.03.009 　

ISSN： 0010-938X

Hydrogen-induced delayed fracture of a Fe-22Mn-0.6C steel pre-strained at different strain rates Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

Scripta Materialia　66　(11)　947-950　2012/06

DOI： 10.1016/j.scriptamat.2012.02.040 　

ISSN： 1359-6462

Hydrogen embrittlement of a 1500-MPa tensile strength level steel with an ultrafine elongated grain structure Peer-reviewed

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　2012/05

DOI： 10.1007/s11661-011-0974-7 　

ISSN： 1073-5623

Hydrogen-induced cracking at grain and twin boundaries in an Fe-Mn-C austenitic steel Peer-reviewed

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

Scripta Materialia　66　(7)　459-462　2012/04

DOI： 10.1016/j.scriptamat.2011.12.015 　

ISSN： 1359-6462

Evaluation of delayed fracture property of high strength bolt steels Peer-reviewed

Eiji Akiyama

ISIJ International　52　(2)　307-315　2012

DOI： 10.2355/isijinternational.52.307 　

ISSN： 0915-1559

eISSN： 1347-5460

Hydrogen embrittlement in Al-added twinning-induced plasticity steels evaluated by tensile tests during hydrogen charging Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

ISIJ International　52　(12)　2283-2287　2012

DOI： 10.2355/isijinternational.52.2283 　

ISSN： 0915-1559

eISSN： 1347-5460

Hydrogen embrittlement in a Fe-Mn-C ternary twinning-induced plasticity steel Peer-reviewed

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

Corrosion Science　54　(1)　1-4　2012/01

DOI： 10.1016/j.corsci.2011.09.022 　

ISSN： 0010-938X

Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution Peer-reviewed

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

Corrosion Science　53　(9)　2988-2993　2011/09

DOI： 10.1016/j.corsci.2011.05.043 　

ISSN： 0010-938X

Constant-load delayed fracture test of atmospherically corroded high strength steels Peer-reviewed

Eiji Akiyama, Katsuhiro Matsukado, Songjie Li, Kaneaki Tsuzaki

Applied Surface Science　257　(19)　8275-8281　2011/07/15

DOI： 10.1016/j.apsusc.2011.03.037 　

ISSN： 0169-4332

eISSN： 1873-5584

Hydrogen entry into Fe and high strength steels under simulated atmospheric corrosion Peer-reviewed

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

Electrochimica Acta　56　(4)　1799-1805　2011/01/15

DOI： 10.1016/j.electacta.2010.09.043 　

ISSN： 0013-4686

eISSN： 1873-3859

Evaluation of delayed fracture property of outdoor-exposed high strength AISI 4135 steels Peer-reviewed

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

Corrosion Science　52　(10)　3198-3204　2010/10

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 Peer-reviewed

Eiji Akiyama, Katsuhiro Matsukado, Maoqiu Wang, Kaneaki Tsuzaki

Corrosion Science　52　(9)　2758-2765　2010/09

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 Peer-reviewed

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

Corrosion Science　52　(5)　1660-1667　2010/05

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 Peer-reviewed

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

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

DOI： 10.1088/1468-6996/11/2/025005 　

ISSN： 1468-6996

eISSN： 1878-5514

Effects of severe plastic deformation on the corrosion behavior of aluminum alloys Peer-reviewed

Eiji Akiyama, Zuogui Zhang, Yoshimi Watanabe, Kaneaki Tsuzaki

Journal of Solid State Electrochemistry　13　(2)　277-282　2009/02

DOI： 10.1007/s10008-007-0496-9 　

ISSN： 1432-8488

Hydrogen embrittlement of high strength steels and environmental hydrogen entry Peer-reviewed

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

Evaluation of delayed fracture characteristics of high strength steel based on CSRT method Peer-reviewed

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

DOI： 10.2355/tetsutohagane.94.215 　

ISSN： 0021-1575

eISSN： 1883-2954

Effect of hydrogen on the fracture behavior of high strength steel during slow strain rate test Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Corrosion Science　49　(11)　4081-4097　2007/11

DOI： 10.1016/j.corsci.2007.03.038 　

ISSN： 0010-938X

Effect of α-Al/Al<inf>3</inf>Ni microstructure on the corrosion behaviour of Al-5.4 wt% Ni alloy fabricated by equal-channel angular pressing Peer-reviewed

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

Corrosion Science　49　(7)　2962-2972　2007/07

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 Peer-reviewed

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

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

DOI： 10.4028/0-87849-428-6.2892 　

ISSN： 0255-5476

eISSN： 1662-9752

The role of corrosion-resistant alloying elements in passivity Peer-reviewed

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

Corrosion Science　49　(1)　42-52　2007/01

DOI： 10.1016/j.corsci.2006.05.003 　

ISSN： 0010-938X

Discrete electrochemical transients of aluminium alloys generated by slurry jet impingement Peer-reviewed

Eiji Akiyama, Martin Stratmann, Achim Walter Hassel

Journal of Physics D: Applied Physics　39　(15)　3157-3164　2006/08/07

DOI： 10.1088/0022-3727/39/15/S05 　

ISSN： 0022-3727

eISSN： 1361-6463

Determination of the critical hydrogen concentration for delayed fracture of high strength steel by constant load test and numerical calculation Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Corrosion Science　48　(8)　2189-2202　2006/08

DOI： 10.1016/j.corsci.2005.07.010 　

ISSN： 0010-938X

Effect of hydrogen on notch tensile strength of high strength steel Peer-reviewed

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　2006/08

ISSN： 1009-6264

Fracture criterion for hydrogen embrittlement of high strength steel Peer-reviewed

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

Materials Science and Technology　22　(2)　167-172　2006/02

DOI： 10.1179/174328406X86191 　

ISSN： 0267-0836

Acetate and chloride effects on hydrogen production across crevices Peer-reviewed

T. Sundararajan, E. Akiyama, K. Tsuzaki

Materials Science Forum　512　97-102　2006

DOI： 10.4028/0-87849-996-2.97 　

ISSN： 0255-5476

eISSN： 1662-9752

Effect of hydrogen on the fracture behavior of high-strength Cr-Mo steel Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Materials Science Forum　512　55-60　2006

DOI： 10.4028/0-87849-996-2.55 　

ISSN： 0255-5476

eISSN： 1662-9752

Influence of microstructure on electrochemical properties of severely deformed AI-5 wt% Cu alloy by ECAP Peer-reviewed

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

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

DOI： 10.4028/0-87849-408-1.705 　

ISSN： 0255-5476

eISSN： 1662-9752

Hydrogen entry in crevice region: Evaluation by hydrogen permeation technique Peer-reviewed

Thiyagarajan Sundararajan, Eiji Akiyama, Yasuyuki Katada, Kaneaki Tsuzaki

ISIJ International　46　(7)　1081-1085　2006

DOI： 10.2355/isijinternational.46.1081 　

ISSN： 0915-1559

Hydrogen mapping across a crevice: Effect of applied potential Peer-reviewed

T. Sundararajan, E. Akiyama, K. Tsuzaki

Scripta Materialia　53　(11)　1219-1223　2005/12

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 Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Scripta Materialia　53　(6)　713-718　2005/09

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 Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Materials Science and Engineering A　398　(1-2)　37-46　2005/05/25

DOI： 10.1016/j.msea.2005.03.008 　

ISSN： 0921-5093

Hydrogen degradation of a boron-bearing steel with 1050 and 1300MPa strength levels Peer-reviewed

Maoqiu Wang, Eiji Akiyama, Kaneaki Tsuzaki

Scripta Materialia　52　(5)　403-408　2005/03

DOI： 10.1016/j.scriptamat.2004.10.023 　

ISSN： 1359-6462

Depassivation and repassivation of titanium under particle impingements Peer-reviewed

E. Akiyama, K. Tsuzaki

ECS Transactions　1　(4)　437-446　2005

DOI： 10.1149/1.2215527 　

ISSN： 1938-5862

eISSN： 1938-6737

Hydrogen mapping across crevices Peer-reviewed

T. Sundararajan, E. Akiyama, K. Tsuzaki

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

DOI： 10.1149/1.1979367 　

ISSN： 1099-0062

Storage and release of soluble hexavalent chromium from chromate conversion coatings on Al alloys Peer-reviewed

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　2003/02

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 Peer-reviewed

Shinji Sakashita, Eiji Akiyama, Kaneaki Tsuzaki, Shinsaku Matsuyama

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

DOI： 10.2355/tetsutohagane1955.88.12_849 　

ISSN： 0021-1575

eISSN： 1883-2954

Materials for global carbon dioxide recycling Peer-reviewed

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　2002/02

DOI： 10.1016/S0010-938X(01)00067-1 　

ISSN： 0010-938X

Advanced materials for global carbon dioxide recycling Peer-reviewed

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　2001/05/31

DOI： 10.1016/S0921-5093(00)01457-X 　

ISSN： 0921-5093

Enhancement of corrosion resistance of amorphous aluminum alloys by alloying additions Peer-reviewed

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

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

Angle-resolved XPS for determination of diffusion coefficients and mobilities of cations in thin passive films Peer-reviewed

Katsuhiko Asami, Eiji Akiyama, Koji Hashimoto

Surface and Interface Analysis　30　(1)　106-111　2000/08

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 Cr^VI concentration Peer-reviewed

Lin Xia, Eiji Akiyama, Gerald Frankel, Richard McCreery

Journal of the Electrochemical Society　147　(7)　2556-2562　2000/07

DOI： 10.1149/1.1393568 　

ISSN： 0013-4651

Effects of nanocrystalline heterogeneity on the corrosion behavior of sputter-deposited chromium-niobium alloys Peer-reviewed

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

Corrosion Science　42　(2)　361-382　2000/02/01

DOI： 10.1016/S0010-938X(99)00077-3 　

ISSN： 0010-938X

Oxidation behavior of amorphous Ni-Zr and Ni-Zr-rare earth element alloys Peer-reviewed

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

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

XPS determination of diffusion coefficients of cations in thin passive films on alloys Peer-reviewed

Katsuhiko Asami, Eiji Akiyama, Koji Hashimoto

Solid State Phenomena　72　79-84　2000

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 Peer-reviewed

E. Akiyama, G. S. Frankel

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

DOI： 10.1149/1.1392597 　

ISSN： 0013-4651

The corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Ta alloys in 12 M HCl Peer-reviewed

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

Corrosion Science　41　(9)　1849-1869　1999/08

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 Peer-reviewed

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

Corrosion Science　41　(9)　1871-1890　1999/08

DOI： 10.1016/S0010-938X(99)00020-7 　

ISSN： 0010-938X

The sulfidation and oxidation behavior of sputter-deposited Al-Nb-Mo alloys Peer-reviewed

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

Materials Science and Engineering A　267　(2)　277-284　1999/07/31

DOI： 10.1016/S0921-5093(99)00103-3 　

ISSN： 0921-5093

Corrosion-resistant Mn-Zr-Cr alloys in chloride-containing media Peer-reviewed

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

Materials Science and Engineering A　267　(2)　285-293　1999/07/31

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 Peer-reviewed

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

Materials Science and Engineering A　267　(2)　220-226　1999/07/31

DOI： 10.1016/S0921-5093(99)00095-7 　

ISSN： 0921-5093

Oxygen evolution on manganese-molybdenum oxide anodes in seawater electrolysis Peer-reviewed

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　1999/07/31

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 Peer-reviewed

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　1999/07/31

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 Peer-reviewed

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

Corrosion Science　41　(6)　1095-1118　1999/06/01

DOI： 10.1016/S0010-938X(98)00174-7 　

ISSN： 0010-938X

Release of chromate ions from chromate conversion coatings on Al alloys Peer-reviewed

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

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

The critical size and nature of nanocrystalline heterogeneity for pitting corrosion Peer-reviewed

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

Anodically deposited manganese-molybdenum oxide anodes with high selectivity for evolving oxygen in electrolysis of seawater Peer-reviewed

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

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

DOI： 10.1023/A:1003492009263 　

ISSN： 0021-891X

The influence of concentration of hydrochloric acid solutions on the passivation behavior of sputter-deposited tungsten rich W-Nb alloys Peer-reviewed

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

Corrosion Science　40　(11)　1897-1914　1998/11/01

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 Peer-reviewed

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

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

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> Peer-reviewed

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

Corrosion Science　40　(9)　1491-1512　1998/09/01

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 Peer-reviewed

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

Corrosion Science　40　(9)　1513-1531　1998/09/01

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 Peer-reviewed

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

Corrosion Science　40　(9)　1587-1604　1998/09/01

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 Peer-reviewed

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

CORROSION SCIENCE　40　(9)　1587-1604　1998/09

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 Peer-reviewed

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

Electrochimica Acta　43　(21-22)　3303-3312　1998/07/01

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 Peer-reviewed

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

Corrosion Science　40　(4-5)　821-838　1998/04

DOI： 10.1016/S0010-938X(98)00003-1 　

ISSN： 0010-938X

The passivation behavior of sputter-deposited W-Ta alloys in 12M HCl Peer-reviewed

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

Corrosion Science　40　(4-5)　757-779　1998/04

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 Peer-reviewed

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

Corrosion Science　41　(3)　477-499　1998/03/01

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 Peer-reviewed

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

Corrosion Science　40　(2-3)　155-175　1998/02

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 Peer-reviewed

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

Materials Transactions, JIM　39　(2)　308-313　1998/02

DOI： 10.2320/matertrans1989.39.308 　

ISSN： 0916-1821

Passivity and its breakdown on sputter-deposited amorphous Mn-Zr alloys in neutral chloride solutions Peer-reviewed

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

Corrosion Science　40　(2-3)　235-250　1998/02

DOI： 10.1016/S0010-938X(97)00123-6 　

ISSN： 0010-938X

Electrochemistry and corrosion engineering of global CO2 recycling Peer-reviewed

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

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

Spontaneously passivated sputter-deposited alloys with richer corrosion resistance than alloy components Peer-reviewed

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

Change in pitting susceptibility with alloy heterogeneity induced by crystallization of amorphous alloys Peer-reviewed

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

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

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

ISSN： 0255-5476

eISSN： 1662-9752

Characterization of CO<inf>2</inf> methanation catalysts prepared from amorphous Ni-Zr and Ni-Zr-rare earth element alloys Peer-reviewed

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

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 Peer-reviewed

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

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 Peer-reviewed

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

Corrosion Science　40　(1)　1-17　1998/01

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 Peer-reviewed

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

Corrosion Science　40　(1)　19-42　1998/01

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 Peer-reviewed

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　1997/12/05

DOI： 10.1016/S0926-860X(97)00142-7 　

ISSN： 0926-860X

Effects of additional elements on electrocatalytic properties of thermally decomposed manganese Oxide electrodes for oxygen evolution from seawater Peer-reviewed

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

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

DOI： 10.2320/matertrans1989.38.899 　

ISSN： 0916-1821

An angle-resolved XPS study of the in-depth structure of passivated amorphous aluminum alloys Peer-reviewed

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

Corrosion Science　39　(8)　1351-1364　1997/08

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 Peer-reviewed

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

Corrosion Science　39　(8)　1365-1380　1997/08

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 Peer-reviewed

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

Materials Transactions, JIM　38　(7)　643-649　1997/07

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 Peer-reviewed

Asahi Kawashima, Eiji Akiyama, Hiroki Habazaki, Koji Hashimoto

Materials Science and Engineering A　226-228　905-909　1997/06/15

DOI： 10.1016/s0921-5093(97)80095-0 　

ISSN： 0921-5093

Corrosion-resistant amorphous aluminum alloys and structure of passive films Peer-reviewed

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

Materials Science and Engineering A　226-228　920-924　1997/06/15

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 Peer-reviewed

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　1997/06/15

DOI： 10.1016/s0921-5093(96)10817-0 　

ISSN： 0921-5093

Spontaneously passivated films on sputter-deposited Cr-Ti alloys in 6M HCl solution Peer-reviewed

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

Corrosion Science　39　(5)　935-948　1997/05

DOI： 10.1016/S0010-938X(97)81159-6 　

ISSN： 0010-938X

No decomposition catalysts prepared from amorphous Ni-Ta-Pd alloys Peer-reviewed

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

Applied Catalysis B: Environmental　11　(3-4)　243-255　1997/03/21

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 Peer-reviewed

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　1997/03

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 Peer-reviewed

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

Corrosion Science　39　(3)　589-603　1997/03

DOI： 10.1016/S0010-938X(96)00148-5 　

ISSN： 0010-938X

The role of phosphorus in enhancing corrosion resistance of amorphous alloys Peer-reviewed

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　1997/03

ISSN： 0040-8808

The corrosion behaviour of sputter-deposited amorphous Mn-Ti alloys in 0.5 M NaCl solutions Peer-reviewed

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

Corrosion Science　39　(2)　305-320　1997/02

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 Peer-reviewed

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

Corrosion Science　39　(2)　355-375　1997/02

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 Peer-reviewed

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

Corrosion Science　39　(2)　321-332　1997/02

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 Peer-reviewed

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

Materials Transactions, JIM　38　(2)　123-132　1997/02

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) Peer-reviewed

Katsuo Sugahara, Yoshio Takizawa, Eiji Akiyama, Koji Hashimoto

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

DOI： 10.3323/jcorr1991.46.702 　

ISSN： 0917-0480

The Corrosion Behavior of Ni-Cr-Mo Ternary Alloys in Hot Concentrated Sulfuric Acids with Active Carbon (Part 1) Peer-reviewed

Katsuo Sugahara, Yoshio Takizawa, Eiji Akiyama, Koji Hashimoto

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

DOI： 10.3323/jcorr1991.46.643 　

ISSN： 0917-0480

Surface activation of manganese oxide electrode for oxygen evolution from seawater Peer-reviewed

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

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

DOI： 10.1023/A:1018421028624 　

ISSN： 0021-891X

The corrosion behaviour of sputter-deposited amorphous Mn-Ta alloys in 0.5 M NaCl solution Peer-reviewed

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

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

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 Peer-reviewed

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

Corrosion Science　38　(12)　2137-2151　1996/12

DOI： 10.1016/S0010-938X(96)00071-6 　

ISSN： 0010-938X

The corrosion behavior of sputter-deposited Mo-Ti alloys in concentrated hydrochloric acid Peer-reviewed

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

Corrosion Science　38　(10)　1649-1667　1996/10

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 Peer-reviewed

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

Corrosion Science　38　(10)　1731-1750　1996/10

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 Peer-reviewed

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

Applied Catalysis B: Environmental　9　(1-4)　93-106　1996/09/02

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 Peer-reviewed

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

Corrosion Science　38　(9)　1495-1511　1996/09

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 Peer-reviewed

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

Corrosion Science　38　(8)　1281-1294　1996/08

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 Peer-reviewed

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

Corrosion Science　38　(8)　1269-1279　1996/08

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 Peer-reviewed

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

Corrosion Science　38　(7)　1127-1140　1996/07

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 Peer-reviewed

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

Corrosion Science　38　(3)　397-411　1996/03

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 Peer-reviewed

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

Corrosion Science　38　(3)　469-485　1996/03

DOI： 10.1016/0010-938X(96)00144-8 　

ISSN： 0010-938X

Recent progress in corrosion-resistant new alloys prepared by sputter deposition Peer-reviewed

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　1996/03

ISSN： 0040-8808

The corrosion behavior of sputter-deposited amorphous Al-Cr-Mo alloys in 1 M HCl Peer-reviewed

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

Corrosion Science　38　(2)　279-292　1996/02

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 Peer-reviewed

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

Corrosion Science　38　(2)　349-365　1996/02

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

DOI： 10.3323/jcorr1991.45.614 　

ISSN： 0917-0480

Total Synthesis and Absolute Configuration of (-)-Sedacryptine Peer-reviewed

Eiji Akiyama, Masahiro Hirama

Synlett　1996　(1)　100-102　1996

DOI： 10.1055/s-1996-5335 　

ISSN： 0936-5214

XPS study of Ni-Mo-B amorphous ultra-fine particles prepared by chemical reduction Peer-reviewed

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

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 Peer-reviewed

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

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

DOI： 10.2320/matertrans1989.37.379 　

ISSN： 0916-1821

The corrosion behavior of Ni-Ta-5P alloys in concentrated hydrochloric acid Peer-reviewed

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

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

DOI： 10.2320/matertrans1989.37.383 　

ISSN： 0916-1821

The corrosion behavior of sputter-deposited amorphous WTi alloys in 6 M HCl solution Peer-reviewed

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

Corrosion Science　37　(12)　2071-2086　1995/12

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 Peer-reviewed

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

Corrosion Science　37　(11)　1843-1860　1995/11

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 Peer-reviewed

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

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

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 Peer-reviewed

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　1995/09

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 Peer-reviewed

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

Corrosion Science　37　(8)　1289-1301　1995/08

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 Peer-reviewed

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

Corrosion Science　37　(8)　1313-1324　1995/08

DOI： 10.1016/0010-938X(95)00049-P 　

ISSN： 0010-938X

Recent progress in corrosion-resistant metastable alloys Peer-reviewed

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　1995/07/15

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> Peer-reviewed

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

Corrosion Science　37　(5)　709-722　1995/05

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　1995/03

ISSN： 0040-8808

Change in the surface composition of amorphous FeCrMoPC alloys during air exposure Peer-reviewed

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

Corrosion Science　37　(2)　331-341　1995/02

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 Peer-reviewed

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

Corrosion Science　37　(2)　307-320　1995/02

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 Peer-reviewed

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

Corrosion Science　37　(2)　321-330　1995/02

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 Peer-reviewed

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

Materials Science Forum　185-188　809-818　1995

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 Peer-reviewed

K. Asami, E. Akiyama, Y. Murakami, H. M. Kimura, M. Kikuchi, K. Hashimoto

Materials Science Forum　185-188　789-798　1995

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 Peer-reviewed

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

Materials Science Forum　185-188　779-788　1995

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 Peer-reviewed

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

Corrosion Science　36　(9)　1537-&　1994/09

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 Peer-reviewed

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

Corrosion Science　36　(8)　1395-1410　1994/08

DOI： 10.1016/0010-938X(94)90188-0 　

ISSN： 0010-938X

The corrosion behaviour of sputter-deposited amorphous NiTi alloys in 1 M HCl Peer-reviewed

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

Materials Science and Engineering A　181-182　(C)　1128-1132　1994/05/15

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 Peer-reviewed

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

Materials Science and Engineering A　181-182　(C)　1091-1094　1994/05/15

DOI： 10.1016/0921-5093(94)90808-7 　

ISSN： 0921-5093

eISSN： 1873-4936

Amorphous alloy electrodes for anodic oxidation of sulfite Peer-reviewed

Toshiyuki Mori, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

Materials Science and Engineering A　181-182　(C)　1081-1084　1994/05/15

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 Peer-reviewed

Byung Mo Im, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

Materials Science and Engineering A　181-182　(C)　1119-1122　1994/05/15

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> Peer-reviewed

Toyoaki Tada, Hiroki Habazaki, Eiji Akiyama, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

Materials Science and Engineering A　181-182　(C)　1133-1136　1994/05/15

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 Peer-reviewed

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

Materials Science and Engineering A　181-182　(C)　1123-1127　1994/05/15

DOI： 10.1016/0921-5093(94)90815-X 　

ISSN： 0921-5093

eISSN： 1873-4936

Highly corrosion-resistant amorphous CrNiP alloys Peer-reviewed

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

Materials Science and Engineering A　181-182　(C)　1114-1118　1994/05/15

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 Peer-reviewed

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

Corrosion Science　36　(3)　511-523　1994/03

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 Peer-reviewed

Asahi Kawashima, Ying Wang, Eiji Akiyama, Hiroki Habazaki, Katsuhiko Asami, Koji Hashimoto

Zairyo-to-Kankyo　43　(11)　654-659　1994

DOI： 10.3323/jcorr1991.43.654 　

ISSN： 0917-0480

eISSN： 1881-9664

The corrosion behavior of sputter-deposited amorphous CrNb and CrTa alloys in 12 M HCl solution Peer-reviewed

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

Corrosion Science　34　(12)　1947-1955　1993/12

DOI： 10.1016/0010-938X(93)90052-I 　

ISSN： 0010-938X

The corrosion behavior of sputter-deposited amorphous chromium-zirconium alloys in 6 M HCl solution Peer-reviewed

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

Corrosion Science　34　(11)　1817-1827　1993/11

DOI： 10.1016/0010-938X(93)90019-D 　

ISSN： 0010-938X

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> Peer-reviewed

Byung Mo Im, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

Corrosion Science　34　(11)　1829-1839　1993/11

DOI： 10.1016/0010-938X(93)90020-H 　

ISSN： 0010-938X

The corrosion behavior of sputter-deposited amorphous titanium-chromium alloys in 1 M and 6 M HCl solutions Peer-reviewed

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

Corrosion Science　34　(6)　975-987　1993/06

DOI： 10.1016/0010-938X(93)90074-Q 　

ISSN： 0010-938X

Decomposition of Nitrogen Monoxide over Amorphous Co&ndash;65Zr Alloys Containing Platinum Group Elements Peer-reviewed

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

Materials Transactions, JIM　34　(8)　725-731　1993

DOI： 10.2320/matertrans1989.34.725 　

ISSN： 0916-1821

eISSN： 2432-471X

The effect of magnesium on the corrosion behavior of sputter-deposited amorphous AlMgTi ternary alloys in a neutral chloride solution Peer-reviewed

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

Corrosion Science　34　(1)　27-40　1993/01

DOI： 10.1016/0010-938X(93)90256-G 　

ISSN： 0010-938X

Corrosion-resistant amorphous surface alloys Peer-reviewed

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

DOI： 10.1016/0010-938X(93)90168-G 　

ISSN： 0010-938X

Preparation of Protective Alumina Coating on Austenitic Stainless Steel by Sol-Gel Method Peer-reviewed

Ying Wang, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Koji Hashimoto

Zairyo-to-Kankyo　42　(3)　158-165　1993

DOI： 10.3323/jcorr1991.42.158 　

ISSN： 0917-0480

eISSN： 1881-9664