11 records found.
Enhanced Resistance to Delayed Fracture in 0.09 mass% P-Doped High-Strength Steel Processed by Warm Tempforming
- Journal article
- Creator
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Yuuji Kimura (author) (Search by this author)Research Center for Structural Materials/Materials Manufacturing Field/Anisotropic Materials Group, National Institute for Materials Science
;
Taku Moronaga (author) (Search by this author)Research Network and Facility Services Division/Materials Fabrication and Analysis Platform/Electron Microscopy Unit, National Institute for Materials Science
;
Kaneaki Tsuzaki (author) (Search by this author)Research Center for Structural Materials, National Institute for Materials Science
- Keyword
- martensite, phosphorus segregation, hydrogen embrittlement, low-alloy steel, thermomechanical treatment, delayed fracture
- Date published
- 2025-01-15
- Updated at
- 2025-01-11 16:30:55 +0900
Solid-solution hardening by hydrogen in Fe–Cr–Ni-based austenitic steel: Temperature and strain rate effects
- Journal article
- Creator
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Yuhei Ogawa (author) (Search by this author)National Institute for Materials Science
;
;Osamu Takakuwa (author) (Search by this author)Kaneaki Tsuzaki (author) (Search by this author)National Institute for Materials Science
- Keyword
- Austenitic stainless steel, Hydrogen, Solid-solution hardening, Dislocations
- Date published
- 2023-06-10
- Updated at
- 2025-06-10 08:30:33 +0900
Fatigue Limit Doubling in High‐Strength Martensitic Steel through Crack Embryo Engineering–Cyclic‐Training‐Driven Self‐Optimization
- Journal article
- Creator
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Kazuho Okada (author) (Search by this author)National Institute for Materials Science
;
Kaneaki Tsuzaki (author) (Search by this author)National Institute for Materials Science
;
Eri Nakagawa (author) (Search by this author)National Institute for Materials Science
;
Akinobu Shibata (author) (Search by this author)National Institute for Materials Science
- Keyword
- マルテンサイト鋼, 疲労限度, き裂発生
- Date published
- 2025-06-29
- Updated at
- 2025-11-11 16:30:06 +0900
Achieving remarkable enhancement of yield strength ensuring large ductility in a metastable Fe50Mn30Cr10Co10 high-entropy alloy via warm rolling treatment
- Journal article
- Creator
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Xiaodong Lan (author) (Search by this author)
;
Kaneaki Tsuzaki (author) (Search by this author)
;
Rintaro Ueji (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- metastable high-entropy alloy, warm rolling, martensitic transformation, ε-TRIP effect, mechanical properties
- Date published
- 2025-08-15
- Updated at
- 2025-08-18 16:30:57 +0900
Improvement of fatigue limit by pre-fatigue deformation in 1.6 GPa-grade as-quenched martensitic steel
- Journal article
- Creator
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Kazuho Okada (author) (Search by this author)
;
Eri Nakagawa (author) (Search by this author)
;
;Kaneaki Tsuzaki (author) (Search by this author)Akinobu Shibata (author) (Search by this author)
- Keyword
- マルテンサイト鋼, 疲労破壊
- Date published
- 2024-11-10
- Updated at
- 2025-07-12 08:30:37 +0900
Advancements in fracture toughness testing of ultra-high-strength steel sheets: Unraveling the crack-closure effect and unanticipated thickness independence
- Journal article
- Creator
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;Yuya Tanaka (author) (Search by this author);Naoki Hirakawa (author) (Search by this author)Kaneaki Tsuzaki (author) (Search by this author)National Institute for Materials Science
;
Akinobu Shibata (author) (Search by this author)National Institute for Materials Science
;
Hisao Matsunaga (author) (Search by this author) - Keyword
- Ultra-high-strength steel, Fracture toughness, Thickness effect, Crack-closure, MT specimen
- Date published
- 2024-07-17
- Updated at
- 2024-11-01 13:08:08 +0900
Origin of the trade-off relationship between tensile strength and hydrogen embrittlement resistance
- Journal article
- Creator
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Kazuho Okada (author) (Search by this author)
;
;Yukihisa Watase (author) (Search by this author)Myeong-heom Park (author) (Search by this author)
https://orcid.org/0009-0006-1965-2676
(unauthenticated)
;
;Kaneaki Tsuzaki (author) (Search by this author)Akinobu Shibata (author) (Search by this author)
- Keyword
- 高強度鋼, 水素脆化, 応力集中
- Date published
- 2025-10-30
- Updated at
- 2025-11-13 08:30:03 +0900
The contribution of Cr and Ni to hydrogen absorption energy in Fe-Cr-Ni austenitic systems: A first-principles study
- Journal article
- Creator
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;Junichiro Moriyama (author) (Search by this author);Osamu Takakuwa (author) (Search by this author);Masatake Yamaguchi (author) (Search by this author)Yuhei Ogawa (author) (Search by this author)National Institute for Materials Science
;
Kaneaki Tsuzaki (author) (Search by this author)National Institute for Materials Science
- Keyword
- Austenitic alloy, First-principles calculation, Hydrogen, Absorption energy, Occupancy
- Date published
- 2023-11-11
- Updated at
- 2025-11-11 08:30:25 +0900
Phenomenology and Mechanisms of Hydrogen–Induced Solid Solution–Hardening in Fe–Cr–Ni Austenitic Steels
- Journal article
- Creator
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Yuhei Ogawa (author) (Search by this author)
;
;Osamu Takakuwa (author) (Search by this author);Junichiro Moriyama (author) (Search by this author);Haruki Nishida (author) (Search by this author);Kaneaki Tsuzaki (author) (Search by this author)Akinobu Shibata (author) (Search by this author)
- Keyword
- Austenitic steel, Hydrogen, Solid solution-hardening
- Date published
- 2026-04-01
- Updated at
- 2026-04-01 15:17:12 +0900
Ausformed high-strength low-alloy steel exhibits exceptional resistance to fatigue crack-growth in high-pressure hydrogen environments
- Journal article
- Creator
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;Timothee Redarce (author) (Search by this author)Kyushu University;Keiichiro Iwata (author) (Search by this author)Kyushu UniversityYuhei Ogawa (author) (Search by this author)National Institute for Materials Science
;
Kaneaki Tsuzaki (author) (Search by this author)National Institute for Materials Science
;
Akinobu Shibata (author) (Search by this author)National Institute for Materials Science
;
Hisao Matsunaga (author) (Search by this author)Kyushu University
- Keyword
- Hydrogen embrittlement, Martensitic steel, Fatigue crack growth, Thermo-mechanical treatment
- Date published
- 2025-01-11
- Updated at
- 2025-01-20 16:30:27 +0900