Microstructure, mechanical properties and age-hardening of Mg-Li alloy sheets

被引：0
|
作者：
Li Hong-bin [1 ]
Yao Guang-chun [1 ]
Guo Zhi-qiang [1 ]
Liu Yi-han [1 ]
Ji Hai-bin [1 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2006年 / 16卷
关键词：
magnesium-lithium alloy; mechanical properties; aging-hardening;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Mg-(5-22)(mass fraction, %)Li alloys with Zn addition were produced and studied. The density of studied alloys is 1.191.62 g/cm(3). it is found that the alloy has excellent cold-workability and can be rolled to thin sheets at room temperature. The tensile tests were carried out at various tensile temperatures and strain rates. It is remarkable that the superplasticity occurs during uniaxial tensions at 150 degrees C. In addition, the sheet is very sensitive to strain-rate even at room temperature. The age-hardening of the sheets at room temperature and 50 degrees C was investigated. The hardening may be caused by the precipitation of MgLi2Zn phase, and overaging occurs owing to the phase transformation from MgLi2Zn to MgLiZn observed by X-ray diffractometry.
引用
收藏
页码：S1729 / S1731
页数：3
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