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Effects of microstructures on fatigue behavior of an Al-Mg-Sc alloy at an elevated temperature
http://hdl.handle.net/2297/30361
http://hdl.handle.net/2297/30361f8d90b21-defc-4e72-9808-2b72059b4ac6
名前 / ファイル | ライセンス | アクション |
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TE-PR-WATANABE-C-426.pdf (192.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Effects of microstructures on fatigue behavior of an Al-Mg-Sc alloy at an elevated 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 |
Watanabe, Chihiro
× Watanabe, Chihiro× Monzen, Ryoichi |
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書誌情報 |
Materials Science Forum 巻 706-709, p. 426-430, 発行日 2012-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0255-5476 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10695957 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.4028/www.scientific.net/MSF.706-709.426 | |||||
出版者 | ||||||
出版者 | Trans Tech Publications | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Polycrystalline Al-1wt%Mg-0.27wt%Sc alloys bearing Al3Sc particles with different average sizes of 4 and 11nm Polycrystalline Al-1wt%Mg-0.27wt%Sc alloys bearing Al3Sc particles with different average sizes of 4 and 11nm in diameter have been cyclically deformed at 423K under various constant stress amplitudes, and the relationship between fatigue characteristics and microstructure of the alloy has been investigated. The specimen bearing 11 nm particles exhibited a cyclic hardening to saturation, while in specimens with the small particles a cyclic softening was observed after initial hardening. In the specimen with large particles, dislocations were uniformly distributed under all applied stress amplitudes, whereas the specimens bearing small particles, in which cyclic softening occurred exhibited clearly developed slip bands. The cyclic softening for the latter specimen was explained by particle shearing within the strongly strained slip bands. The width of precipitate free zones (PFZs) has been found to be one of the factors affecting the fatigue life of the specimens at 423K. The two-step aging decreases the width of PFZs, resulting in increase in the fatigue life. © 2012 Trans Tech Publications, Switzerland. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |