Cyclic deformation behavior of as-extruded Mg-3%Al-1%Zn

被引：150
|
作者：
Yin, S. M. [1 ,2 ]
Yang, H. J. [1 ]
Li, S. X. [1 ]
Wu, S. D. [1 ]
Yang, F. [1 ]
机构：
[1] Chinese Acad Sci, Inst Metal Res, Shenyang 110016, Peoples R China
[2] Shenyang Inst Chem Technol, Shenyang 110142, Peoples R China
来源：
SCRIPTA MATERIALIA | 2008年 / 58卷 / 09期
基金：
中国国家自然科学基金;
关键词：
magnesium alloy; fatigue; EBSD; twinning and untwinning;
D O I：
10.1016/j.scriptamat.2007.12.020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The cyclic deformation behavior of extruded magnesium alloy Mg-3%Al-1%Zn (AZ31) was studied under plastic strain amplitude and stress amplitude-control at room temperature. A significant cyclic hardening asymmetry of stress amplitudes between compression and tension was observed under constant plastic strain amplitude-controlled cycling. The possible reasons for this phenomenon are discussed by a combination of hysteresis loop analysis and in situ observation of twinning and untwinning during one loading cycle using electron backscatter diffraction. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：751 / 754
页数：4
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