Microstructure and Texture Evolution of Magnesium Alloys During Electropulse Treatment

被引：38
作者：
Kuang, Jie [1 ,2 ]
Li, Xiaohui [1 ,3 ]
Ye, Xiaoxin [1 ]
Tang, Jianguo [4 ]
Liu, Haifeng [1 ]
Wang, Jeff [5 ]
Tang, Guoyi [1 ,2 ]
机构：
[1] Tsinghua Univ, Grad Sch Shenzhen, Adv Mat Inst, Shenzhen 518055, Peoples R China
[2] Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Adv Mat, Beijing 100084, Peoples R China
[3] Guangzhou Res Inst Nonferrous Met, Guangzhou 510651, Guangdong, Peoples R China
[4] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[5] Gen Motors China Sci Lab, Shanghai 201206, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2015年 / 46A卷 / 04期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
ELECTRIC-CURRENT PULSES; AZ31 MG ALLOY; CU-ZN ALLOY; AL-LI ALLOY; RARE-EARTH; MECHANICAL-PROPERTIES; GRAIN-BOUNDARIES; ROOM-TEMPERATURE; MAGNETIC-FIELD; RECRYSTALLIZATION;
D O I：
10.1007/s11661-014-2735-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two magnesium alloys AZ31 and ZEK100 were subjected to cold rolling followed by electropulse treatment (EPT) for different durations in order to investigate the microstructure and texture evolution during EPT. AZ31 started to recrystallize once the electropulse current was applied. ZEK100, in contrast, exhibited two-stage recrystallization before which an evident recovery process occurred. Texture modification was achieved in both alloys after recrystallization, with AZ31 exhibiting a weak RD-split texture and ZEK100 a TD-spread one. The results were discussed with particular emphasis on the distinct impact of electropulse current on the recrystallization texture formation. It is proposed that the promotion of the nucleation of non-basal-oriented grains, the change of the relative mobility of grain boundaries, and the non-basal dislocation activity in the continuous recrystallization are responsible for the texture modification. (C) The Minerals, Metals & Materials Society and ASM International 2015
引用
收藏
页码：1789 / 1804
页数：16
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