等温多向锻造AZ61镁合金的组织演化与力学性能

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Bibliographic Details
Published in中国有色金属学报：英文版 no. 11; pp. 3186 - 3192
Main Author 夏祥生 陈明 卢永进 樊富友 朱春华 黄静 邓天泉 朱世凤
Format Journal Article
LanguageEnglish
Published 2013
Subjects
力学性能
多向锻造
显微组织
镁合金
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Bibliography:Mg alloy; multi-axial forging; microstructure; mechanical properties
43-1239/TG
Microstructure and mechanical properties of AZ61 Mg alloy during isothermal multi-axial forging （MAF） were studied. The mechanisms of grain refinement and relationship between the microstructures and mechanical properties were discussed. The results show that the average grain size decreases with increasing the number of MAF passes. The grains are significantly refined at the 1st and 2nd MAF passes, and gradually refined at higher MAF passes. The initial grain size of 148 lam decreases to about 14 gm after 6 MAF passes. The grain refinement occurs mainly by continuous dynamic recrystallization. With increasing the MAF passes, both the tensile strength and the elongation to failure of the alloy are significantly enhanced.
Xiang-sheng XIA, Ming CHEN, yong-jin LU, Fu-you FAN, Chun-hua ZHU, Jing HUANG, Tian-quan DENG, Shi-feng ZHU 1. Southwest Technique and Engineering Institute, Chongqing 400039, China; 2. Research Development Center of Changsha Electromechanical Products, Changsha 410100, China; 3. State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China
ISSN:1003-6326