Microstructure evolution and mechanical properties of Mg alloy AZ31D processed by equal channel angular extrusion

被引：0
|
作者：
Zhang, Y. S. [1 ]
Zeng, Z. P. [1 ]
Liu, X. F. [1 ]
Jin, Q. L. [1 ]
机构：
[1] Beijing Res Inst Mech & Elect Technol, Beijing 100083, Peoples R China
来源：
SUPERPLASTICITY IN ADVANCED MATERIALS | 2007年 / 551-552卷
基金：
中国国家自然科学基金;
关键词：
AZ31D dynamic recrystallization; magnesium alloy; ECAE;
D O I：
10.4028/www.scientific.net/MSF.551-552.651
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructure evolution and mechanical properties of magnesium alloy AZ31D processed by equal channel angular extrusion(ECAE) are studied. The processing temperature and the passes of extrusion are important factors to affect the microstructure and mechanical properties of the magnesium alloy during ECAE. In this paper, ECAE was performed at the temperature from 523 to 673K. The ductility increased through the grain refinement after the ECAE because the recrystallization took place and high angle grain boundary formed. The elongation of magnesium alloys AZ31D was improved after the ECAE. The maximum elongation-to-failure of magnesium alloys AZ31D processed by ECAE for 4 passes at 573K and strain rate of 0.5 x10(-4) s(-1) was 350%.
引用
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页码：651 / +
页数：2
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