Static recrystallization behavior of multi-directional impact forged Mg-Gd-Y-Zr alloy

doi:10.1016/j.jallcom.2019.07.086

CORC > 金属研究所 > 中国科学院金属研究所

	Static recrystallization behavior of multi-directional impact forged Mg-Gd-Y-Zr alloy
	Shah, S. S. A.1,2; Wu, D.1; Chen, R. S.1; Song, G. S.2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2019-10-15
卷号	805 页码:189-197
关键词	Magnesium alloys Forging Twinning Static recrystallization Texture
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2019.07.086
通讯作者	Chen, R. S.(rschen@imr.ac.cn) ; Song, G. S.(song_ahut@163.com)
英文摘要	The static recrystallization behavior of a (Mg-9.02Gd-4.21Y-0.48Zr wt.%) GW94 alloy during annealing treatment in the temperature range of 350-500 degrees C has been investigated by means of electron back-scattered diffraction (EBSD). To investigate the role of twin boundaries in static recrystallization of GW94 alloy, a large number of {10-12} extension twins were introduced initially by multi-directional impact forging (MDIF) process. After the MDIF process, coarse grains containing parallel and intersected twins while small grains containing only parallel twins were observed. It has been observed that twin/grain boundaries (TBs/GBs) are stable at 350 degrees C, but static recrystallization governed by the increased twin/grain boundary mobilities begins at the 400-450 degrees C temperature range. Microstructure evolution during static annealing reveals that nearly all pre-existing {10-12} extension twins start to recrystallize at 400 degrees C and 60 min, yet few parallel twins plus residual twin traces with misorientations of 5 degrees-10 degrees were observed. In contrast to the parallel twins in both large and small grains, the intersected {10-12} extension twins in coarse grains were found to be unstable and more effective to induce recrystallization. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Key Research and Development Program of China[2016YFB0301104] ; National Natural Science Foundation of China[51301173] ; National Natural Science Foundation of China[51531002] ; National Natural Science Foundation of China[51601193] ; National Basic Research Program of China (973 Program)[2013CB632202] ; Anhui University of Technology[DC17200001]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000482184100022
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Basic Research Program of China (973 Program) ; Anhui University of Technology
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135207]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, R. S.; Song, G. S.
作者单位	1.Chinese Acad Sci, Grp Magnesium Alloys & Their Applicat, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China 2.Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan, Peoples R China
推荐引用方式 GB/T 7714	Shah, S. S. A.,Wu, D.,Chen, R. S.,et al. Static recrystallization behavior of multi-directional impact forged Mg-Gd-Y-Zr alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,805:189-197.
APA	Shah, S. S. A.,Wu, D.,Chen, R. S.,&Song, G. S..(2019).Static recrystallization behavior of multi-directional impact forged Mg-Gd-Y-Zr alloy.JOURNAL OF ALLOYS AND COMPOUNDS,805,189-197.
MLA	Shah, S. S. A.,et al."Static recrystallization behavior of multi-directional impact forged Mg-Gd-Y-Zr alloy".JOURNAL OF ALLOYS AND COMPOUNDS 805(2019):189-197.