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Cyclic deformation, dislocation structure, and internal fatigue crack generation in a Ti-Fe-O alloy at liquid nitrogen temperature
http://hdl.handle.net/10131/7913
http://hdl.handle.net/10131/79132bfa213d-e857-44f3-9cef-fc35e165c995
名前 / ファイル | ライセンス | アクション |
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A-33 MMT31A11.pdf (4.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-03-23 | |||||
タイトル | ||||||
タイトル | Cyclic deformation, dislocation structure, and internal fatigue crack generation in a Ti-Fe-O alloy at liquid nitrogen temperature | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Yokoyama, Hisanaga
× Yokoyama, Hisanaga× Umezawa, Osamu× Nagai, Kotobu× Suzuki, Takashi× Kokubo, Kunio |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17813 | |||||
姓名 | ヨコヤマ, ヒサナガ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 480 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=20343171 | |||||
識別子 | 20343171 | |||||
姓名 | ウメザワ, オサム | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17815 | |||||
姓名 | ナガイ, コトブ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17816 | |||||
姓名 | スズキ, タカシ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17817 | |||||
姓名 | コクボ, クニオ | |||||
著者所属 | ||||||
Department of Mechanical Engineering, Kogakuin University | ||||||
著者所属 | ||||||
Frontier Research Center for Structural Materials, National Research Institute for Metals | ||||||
著者所属 | ||||||
Frontier Research Center for Structural Materials, National Research Institute for Metals | ||||||
著者所属 | ||||||
Department of Mechanical Engineering, Kogakuin University | ||||||
著者所属 | ||||||
Department of Mechanical Engineering, Kogakuin University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To clarify the internal fatigue crack generation in a Ti-Fe-O (near α-type) alloy, microstructures, internal fatigue crack initiation sites, and dislocation structures in samples fractured during high-cycle fatigue tests at liquid nitrogen temperature were studied. The alloy contained two kinds of elongated α-phase microstructures, i.e., recovered α grains and recrystallized α grains. Untested samples contained mobile dislocations in recovered αgrains, but in recrystallized α grains, any dislocations were observed. Internal crack initiation sites were formed transgranularly and were related to the recrystallized α grain region, judging from their morphology, size, and chemistry. Dislocations in revovered α grains were rearranged after cyclic loading in either {0110}-<1120> planar arrays or subgrain structures due to dislocation annihilation. Few dislocations were seen in recrystallized α grains. We discuss the relationship between localized strain incompatibility due to coplanar arrays in recovered α grains and transgranular cracking in recrystallized α grains, and propose a model for fatigue crack generation. | |||||
書誌情報 |
Metallurgical and materials transactions. A, Physical metallurgy and materials science 巻 31, 号 11, p. 2793-2805, 発行日 2000-11 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10735623 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987657 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | ASM International |