Effect of temperature on mechanical behavior of AZ31 magnesium alloy

被引：35
|
作者：
Tan Cheng-wen [1 ]
Xu Shan-na
Wang Lu
Chen Zhi-yong
Wang Fu-chi
Cai Hong-nian
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
[3] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2007年 / 17卷 / 01期
关键词：
AZ31 magnesium alloy; strain rate sensitivity; tension/compression asymmetry; temperature effect;
D O I：
10.1016/S1003-6326(07)60045-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Strain rate sensitivity and tension/compression asymmetry of AZ31 magnesium alloy at different temperatures and strain rates were investigated. Both of mechanical behaviors are temperature dependent. Strain rate sensitivity increases with increasing temperature. Thermally activated slip is the source of strain rate sensitivity. At the temperature below or near 373 K, strain rate sensitivity is very little. Tension/compression asymmetry in yielding decreases with increasing temperature. Twinning is the reason of tension/compression asymmetry. At the temperature above or near 573 K, the material shows little tension/compression asymmetry of the flow stress.
引用
收藏
页码：41 / 45
页数：5
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