Formation and annihilation of persistent slip bands in fatigued copper single crystals

被引：0
|
作者：
Zhu, R
Li, SX [1 ]
Li, Y
Li, MY
Chao, YS
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
[2] Northeastern Univ, Dept Mat Phys, Shenyang 110004, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2004年 / 40卷 / 05期
关键词：
Cu single crystal; persistent slip line (PSL); persistent slip band (PSB); penetrating force; annihilation part by part;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In single-slip-oriented copper single crystals which were cyclically deformed under constant plastic shear strain amplitude control, the persistent slip line (PSL) was first formed in the vein dislocation structure of matrix, and then it was rather quickly transformed into persistent slip band (PSB) under consecutive cycling. During annealing for the fatigued copper single crystals with PSBs the penetrating force caused by different void densities drives dislocations motion, makes some parts of PSB thinning and finally PSBs disappeared under the mechanism of annihilation part by part. Because of gradual releasing of the strain energy in annealing process, no recrystallized grain has been observed.
引用
收藏
页码：467 / 470
页数：4
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