Texture and grain-size effects on cyclic plasticity in copper and copper-zinc

被引：17

作者：

Carstensen, JV ^{[1
]}

Pedersen, OB ^{[1
]}

机构：

[1] RISO NATL LAB,DEPT MAT,DK-4000 ROSKILDE,DENMARK

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 234卷

关键词：

cyclic plasticity; texture; planar slip; wavy slip;

D O I：

10.1016/S0921-5093(97)00244-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A study of plastic strain controlled fatigue of copper and copper-zinc shows that polycrystalline Cu-30%Zn does not display true cyclic saturation and that texture has a major effect on the cyclic stress-strain (CSS) behaviour, whereas grain size has a minor effect. The self-consistent Sachs estimate of the CSS curve for polycrystalline Cu-30%Zn lies within 20% of the experimental curve for plastic strain amplitudes up to about 5 x 10(-3), as compared with 1 x 10(-3) for copper. The increased range of validity of the Sachs model is correlated with slip planarity. (C) 1997 Elsevier Science S.A.

引用

页码：497 / 500

页数：4

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