Precipitation and responding damping behavior of heat-treated AZ31 magnesium alloy

被引：25
|
作者：
Wan, Diqing [1 ]
Wang, Jincheng [1 ]
Wang, Gaifang [1 ]
Lin, Lin [1 ]
Feng, Zhigang [1 ]
Yang, Gencang [1 ]
机构：
[1] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2009年 / 22卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Magnesium alloys; Damping behavior; Precipitation; G-L model; Damping peak;
D O I：
10.1016/S1006-7191(08)60063-0
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Microstructure observation and dynamic mechanical analysis were carried out to investigate the precipitation and responding damping behaviors of AZ31 magnesium alloy. All the strain amplitude-dependent damping curves of the aged alloys are located between the curves of solutionized and as-cast alloys, although they have different critical strain amplitudes. The G-L theory is employed to explain the damping mechanism involving the interaction between the dislocation and the precipitated phase. In addition, a damping peak is observed at temperatures close to 330 degrees C for AZ31 magnesium alloy, which is related to the beta-Mg(17)Al(12) phase dissolution.
引用
收藏
页码：1 / 6
页数：6
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