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β型チタン合金の内部疲労き裂発生挙動に及ぼす応力比の影響
http://hdl.handle.net/10110/1786
http://hdl.handle.net/10110/178699e282c3-3837-421d-9c75-3c737ee6790a
名前 / ファイル | ライセンス | アクション |
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機械論文A98-2528.pdf (1.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-01-15 | |||||
タイトル | ||||||
タイトル | β型チタン合金の内部疲労き裂発生挙動に及ぼす応力比の影響 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fatigue | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Subsurface Crack Initiation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Stress Ratio | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Microstructure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Beta-Type Titanium Alloy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ti-15V-3Cr-3Sn-3Al | |||||
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 |
塩澤, 和章
× 塩澤, 和章× 黒田, 康嗣× 西野, 精一 |
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著者別名 | ||||||
姓名 | Shiozawa, Kazuaki | |||||
著者別名 | ||||||
姓名 | Kuroda, Yasushi | |||||
著者別名 | ||||||
姓名 | Nishino, Seiichi | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | Effect of Stress Ratio on Subsurface Fatigue Crack Initiation Behavior of Beta-Type Titanium Alloy | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The effect of stress ratio (R=σ_<min>/σ_<msx>) on subsurface fatigue crack initiation behavior in high-cycle fatigue of beta-type titanium alloy, Ti-15V-3Cr-3Sn-3Al, was investigated using smooth specimen subjected to axial reversed loading in air at room temperature. Two types of microstructure prepared using different aging time conditions included the partially precipitated alphaphase in beta-phase and the fully precipitated one. The first part of S-N curves at high stress amplitude region tested under R=-1 and 0.05 looks similar to curves reported in the literature, however after the curve flattens out there was a sharp drop in the fatigue strength at low stress amplitude region, accompanying a transition of crack initiation site from surface to interior. The number of cycles to the transition depended on R but did not depend on the microstructure. Fatigue fracture of all specimens tested under R=0.5 and 0.7 showed the subsurface crack initiation. No defect was observed at the subsurface crack nucleation sites, but the region of the nucleation site had a grain morphology of facet pattern. Limit of fatigue fracture occurred by surface crack initiation was controlled by the threshold of formation of slip in beta-phase due to cyclic hardening, and described by the Gerber-relationship characterizing mean stress effect. | |||||
書誌情報 |
日本機械学會論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A 巻 64, 号 626, p. 2528-2535, 発行日 1998-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03875008 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN0018742X | |||||
権利 | ||||||
権利情報 | rights: 本文データは社団法人日本機械学会の許諾に基づきCiNiiから複製したものである | |||||
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 | 社団法人日本機械学会 | |||||
資源タイプ(DSpace) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |