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Title: The variation of beta phase morphology after creep and negative creep for duplex titanium alloys,Journal of Materials Science
Authors: Shing-Hoa Wang
Hao-Hsun Lee
Chih-Yuan Chen
Jer-Ren Yang
Chin-Hai Kao
Contributors: 國立臺灣海洋大學:機械與機電工程學系
Keywords: Titanium Alloy;Internal Stress;Creep Rate;Creep Strain;Stress Drop
Date: 2009-01
Issue Date: 2019-12-16T05:45:51Z
Publisher: Scisence Journals
Abstract: Abstract: The creep resistance of SP700 (Ti–4.5Al–3V–2Mo–2Fe) is superior to Ti–6–4 (Ti–6Al–4V) at 500 °C under a constant load corresponding to an initial stress of 100 MPa. The β phase grains in the SP700 alloy prefer to orient along the loading axis in contrast to the Ti–6–4 alloy. The grain growth occurs during the stress drop incubation period. The observation of different amounts of negative creep/anelasticity upon loading is closely associated with the difference in the amount of grain/subgrain coarsening.
Relation: 44(2) pp 408-413
Appears in Collections:[Department of Mechanical and Mechatronic Engineering] Periodical Articles

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