Temperature effects on the fatigue behavior of ultrafine-grained copper produced by equal channel angular pressing

被引：18
|
作者：
Li, XW
Umakoshi, Y
Wu, SD
Wang, ZG
Alexandrov, IV
Valiev, RZ
机构：
[1] Osaka Univ, Dept Mat Sci & Engn, Grad Sch Engn, Suita, Osaka 5650871, Japan
[2] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Met Res Inst, Shenyang 110016, Peoples R China
[3] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2004年 / 201卷 / 15期
关键词：
D O I：
10.1002/pssa.200409073
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fatigue behavior of ultrafine-grained copper produced by equal channel angular (ECA) pressing was investigated at temperatures between room temperature and 573 K under a constant stress amplitude of 200 MPa. Cyclic softening was found to be much more evident and the corresponding fatigue life decreases rapidly as temperature increases. This phenomenon was considered as being the result of the grain coarsening and microstructural changes in the coarsened grains associated with the testing temperature. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：R119 / R122
页数：4
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