Effect of heating-rate on failure temperature of pre-loaded magnesium alloy

被引：0
|
作者：
Luo Ji [1 ,2 ]
Chen Bin [1 ,2 ]
Yuan Quan [1 ,2 ]
Zhang Ding-fei [3 ]
Quan Guo-zheng [3 ]
机构：
[1] Chongqing Univ, Coll Resources & Environm Sci, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Minist Educ, Key Lab Exploitat SW Resources & Environm Disaste, Chongqing 400044, Peoples R China
[3] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷
基金：
中国国家自然科学基金;
关键词：
magnesium alloy AZ31; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency; MICROSTRUCTURE; BEHAVIOR; LY12;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The response and failure of magnesium alloy AZ31 specimens subjected to different pre-loaded-stress levels and heating rates were investigated with a Gleeble-1500 thermo-mechanical material testing system. It is found that the increases of either pre-loaded stresses or heating-rates decrease the failure temperatures of the specimens. The metallographs of the tested specimens were also observed. It is shown that the high heating-rate may cause stronger local thermal inconsistency, which remarkably increases the microdefects and reduces the macroscopic mechanical properties of the material.
引用
收藏
页码：S371 / S375
页数：5
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