Survey of plateau behaviour in the cyclic stress-strain curve of copper single crystals

被引：30
|
作者：
Li, XW [1 ]
Wang, ZG [1 ]
Li, SX [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, State Key Lab Fatigue & Fracture Mat, Shenyang 110015, Peoples R China
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 1999年 / 79卷 / 09期
关键词：
D O I：
10.1080/095008399176760
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Experimental results relating to the plateau behaviour in the cyclic stress-strain (CSS) curve of copper single crystals located on different sides of the stereographic triangle are summarized. Unlike the situation for single-slip-oriented crystals, the crystallographic orientation has a strong effect on the plateau behaviour in the CSS curves of double- and multiple-slip-oriented crystals. The existence or non-existence of a plateau in the CSS curves, as well as the corresponding plateau stress amplitude, depend not only on the modes and intensities of dislocation interactions among slip systems operating in the crystals but also on the slip deformation characteristics associated with crystal orientations. The plateau region in CSS curve disappears only when multiple slip plays a determining role during cyclic deformation.
引用
收藏
页码：715 / 719
页数：5
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