Mechanical behavior and microstructure evolution of Mg-Gd-Y-Zn-Zr alloy during multipass hot compression deformation

Jianmin M. Yu, Xubin B. Li, Zhimin M. Zhang, Qiang Wang, Yaojin J. Wu, Jun Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

The multi-pass hot compression deformation behavior of the cast alloy with the composition of Mg-13Gd-4Y-2Zn-0.6Zr, was investigated, and the four-pass compression tests were conducted at the temperatures ranging from 350℃ to 500℃ and strain rate 0.01 s-1. The experimental results showed that the alloys incurred different degrees of softening by multipass deformation. The microstructure evolution for the deformed alloy was investigated, the influence of the microstructure on the hardness properties of the alloy discussed. The tests reveal that dynamic recrystallization is not the main softening mechanism for this alloy; rather, kink deformation refines the grains to achieve the observed softening effect. The hardness test curve showed that the hardness increased gradually with an increasing number of deformation passes. The improvement of the main mechanical properties related to the strengthening by the grain refinement. In multipass deformation, the misorientation of the kink belt gradually increased,and refined the grains. On the other hand, the grain size of the eutectic phase at the grain boundary decreased with increase of deformation passes. In addition, the mechanical properties were improved by the distribution dispersion of tiny cuboidal particles and acicular-like phases in the matrix.

源语言英语
主期刊名Special and High Performance Structural Materials
编辑Yafang Han, Ying Wu, Guangxian Li, Fusheng Pan, Runhua Fan, Xuefeng Liu
出版商Trans Tech Publications Ltd
186-195
页数10
ISBN(印刷版)9783038357612
DOI
出版状态已出版 - 2016
已对外发布
活动Chinese Materials Conference on Special and High Performance Structural Materials, CMC 2015 - Guiyang, 中国
期限: 10 7月 201514 7月 2015

出版系列

姓名Materials Science Forum
849
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Conference on Special and High Performance Structural Materials, CMC 2015
国家/地区中国
Guiyang
时期10/07/1514/07/15

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