11 records found. Displaying records 1 to 10.
大気暴露試験による1700 MPa級超高力ボルトの緩み
- Journal article
- Creator
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木村 勇次 (author) (Search by this author)構造材料研究センター/材料創製分野/異方性材料グループ, 物質・材料研究機構
;
;森山 仁志 (author) (Search by this author)徳島大学;長崎 英二 (author) (Search by this author)大阪公立大学;山口 隆司 (author) (Search by this author)大阪公立大学;増田 浩志 (author) (Search by this author)宇都宮大学津﨑 兼彰 (author) (Search by this author)
- Keyword
- 低合金鋼, low-alloy steel, ultra-high-strength bolt, bolt loosening, delayed fracture, outdoor exposure test
- Date published
- Updated at
- 2026-06-25 14:39:30 +0900
Data-driven analysis of hydrogen embrittlement in martensitic steels with interpretable machine learning
- Journal article
- Creator
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Houichi Kitano (author) (Search by this author)
;
Yuuji Kimura (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
- Keyword
- Hydrogen embrittlement, Martensitic steel, Machine learning, hap (shapley additive explanations), Symbolic regression
- Date published
- 2026-04-23
- Updated at
- 2026-06-17 09:57:29 +0900
1700 MPa級軸先行型降伏ボルトを用いた引張接合継手の数値解析的研究
- Journal article
- Creator
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;杉本 悠真 (author) (Search by this author)岩手大学;森山 仁志 (author) (Search by this author)徳島大学木村 勇次 (author) (Search by this author)構造材料研究センター/材料創製分野/異方性材料グループ, 物質・材料研究機構
;
津﨑 兼彰 (author) (Search by this author)
;
山口 隆司 (author) (Search by this author)大阪公立大学
- Keyword
- 超高力ボルト, 引張接合接手
- Date published
- Updated at
- 2026-03-04 12:30:18 +0900
Delayed Fracture Mechanism of 1700 MPa-Class Quenched and Tempered Bolt under Atmospheric Corrosion Environment
- Journal article
- Creator
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Yuuji Kimura (author) (Search by this author)
;
Tadanobu Inoue (author) (Search by this author)
- Keyword
- low-alloy steel, ultra-high-strength bolt, outdoor exposure test, delayed fracture, hydrogen embrittlement.
- Date published
- 2026-02-01
- Updated at
- 2026-03-04 12:30:15 +0900
Preface to the 110th Anniversary Special Issue of Tetsu-to-Hagané
- Journal article
- Creator
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Yuuji Kimura (author) (Search by this author)
- Keyword
- Iron, Steel
- Date published
- 2025-06-15
- Updated at
- 2025-06-16 16:30:33 +0900
低合金鋼の温間テンプフォーミング
- Journal article
- Creator
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木村 勇次 (author) (Search by this author)構造材料研究センター/材料創製分野/異方性材料グループ, 物質・材料研究機構
- Keyword
- Low-alloy steel, Thermo-Mechanical Treatment, Martensite, Toughness, Delayed Fracture
- Date published
- 2025-04-28
- Updated at
- 2025-05-03 08:30:07 +0900
1700 MPa級超高力ボルトの大気腐食環境での遅れ破壊挙動
- Journal article
- Creator
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木村 勇次 (author) (Search by this author)構造材料研究センター/材料創製分野/異方性材料グループ, 物質・材料研究機構
;
;森山 仁志 (author) (Search by this author)徳島大学;長崎 英二 (author) (Search by this author)大阪市立大学;山口 隆司 (author) (Search by this author)大阪公立大学;増田 浩志 (author) (Search by this author)宇都宮大学津﨑 兼彰 (author) (Search by this author)
- Keyword
- Low-alloy steel, ultra-high-strength bolt, delayed fracture, outdoor exposure test
- Date published
- Updated at
- 2025-04-01 13:06:37 +0900
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
Effect of carbon segregation at prior austenite grain boundary on hydrogen-related crack propagation behavior in 3Mn-0.2C martensitic steels
- Journal article
- Creator
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Kazuho Okada (author) (Search by this author)
;
Akinobu Shibata (author) (Search by this author)
;
Yuuji Kimura (author) (Search by this author)
;
Masatake Yamaguchi (author) (Search by this author)
https://orcid.org/0000-0001-8839-2261
(unauthenticated)
;
Ken-ichi Ebihara (author) (Search by this author)
https://orcid.org/0000-0003-3061-5711
(unauthenticated)
;
Nobuhiro Tsuji (author) (Search by this author)
https://orcid.org/0000-0002-2132-1327
(unauthenticated)
- Keyword
- Hydrogen embrittlement, Martensitic steel, Crack propagation, Grain-boundary segregation, Intergranular failure
- Date published
- 2024-08-14
- Updated at
- 2024-09-05 16:30:34 +0900
1700MPa 級超高力ボルトの量産試作およびそれを用いた 摩擦接合継手のすべり耐力
- Journal article
- Creator
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;森山 仁志 (author) (Search by this author)木村 勇次 (author) (Search by this author)National Institute for Materials Science
;
;山口 隆司 (author) (Search by this author)津﨑 兼彰 (author) (Search by this author)National Institute for Materials Science
;
;増田 浩志 (author) (Search by this author);長崎 英二 (author) (Search by this author)秦 子策 (author) (Search by this author)
- Keyword
- Ultra-high-strength bolts, friction type bolted joints, slip coefficient, tensile resistance
- Date published
- Updated at
- 2024-08-26 12:30:37 +0900