Improved plasticity of Mg-Al-Zn alloy by electropulsing tension

被引：50
|
作者：
Xu, Qing [1 ]
Guan, Lei [1 ]
Jiang, Yanbin [1 ]
Tang, Guoyi [1 ]
Wang, Shaonan [1 ]
机构：
[1] Tsinghua Univ, Grad Sch Shenzhen, Adv Mat Inst, Shenzhen 518055, Peoples R China
来源：
MATERIALS LETTERS | 2010年 / 64卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Magnesium alloys; Electropulsing; Mechanical properties; Microstructure; Dynamic recrystallization; AGED MG-9AL-1ZN ALLOY; DYNAMIC RECRYSTALLIZATION; MAGNESIUM ALLOYS; DEFORMATION; BEHAVIOR; MICROSTRUCTURE; TEMPERATURE; MECHANISMS; PHASE; STRIP;
D O I：
10.1016/j.matlet.2010.02.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of electropulsing tension (ET) on the elongation to failure and microstructure of Mg-3A1-1Zn (AZ31) alloy was studied. It was found that electropulsing increased the elongation to failure dramatically at a high strain rate of 2.5 x 10(-2) s(-1), compared with the non-ET sample. The mechanism for increasing the elongation was proposed mainly based on dynamic recrystallization (DRX). The results in this investigation indicated that an ideal improvement in plasticity and fine equiaxial grains were obtained at a low temperature and a high strain rate due to the coupling of the thermal and athermal effects of ET. It is different from conventional theories. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1085 / 1087
页数：3
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