Strain-rate sensitivity and microstructural evolution in a Mg-Al-Zn alloy

被引：74
|
作者：
Korla, Rajesh [1 ]
Chokshi, Atul H. [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 09期
关键词：
Twinning; Strain rate sensitivity; Magnesium; Texture; MAGNESIUM ALLOY; GRAIN-SIZE; DEFORMATION MECHANISMS; TEXTURE DEVELOPMENT; AZ31; COMPRESSION; BEHAVIOR; TEMPERATURE; DEPENDENCE; SHEET;
D O I：
10.1016/j.scriptamat.2010.06.047
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Strain rate sensitivity measurements are used to identify twinning and changes in deformation mechanisms in a Mg AZ31 alloy over a wide range of temperatures and grain sizes. At low temperatures, there is significant twinning at low strains with strain-rate insensitivity; at large strains, strain rate sensitivity is noted, corresponding to deformation by multiple slip. At high temperatures, there is very little twinning and this leads to a significant strain rate sensitivity from the early stages of deformation. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：913 / 916
页数：4
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