Microstructure and mechanical behaviour of semi-solid die-casting AZ91D magnesium alloy

doi:10.1016/j.matlet.2006.09.007

IMR OpenIR

	Microstructure and mechanical behaviour of semi-solid die-casting AZ91D magnesium alloy
	Du, Xinghao ; Zhang, Erlin
通讯作者	Zhang, Erlin(erlin.zhang@imr.ac.cn)
	2007-05-01
发表期刊	MATERIALS LETTERS
ISSN	0167-577X
卷号	61 期号:11-12 页码:2333-2337
摘要	Microstructures and mechanical properties of an AZ91D magnesium alloy prepared with semi-solid die-casting (SSDC) were characterized in as-cast conditions. The SSDC alloy exhibits a unique microstructure featuring primary alpha-Mg globules uniformly distributed in the matrix of fine secondary alpha-Mg grains and beta-Mg17Al12 intermetallic. High ultimate tensile strength and elongation have been achieved before fracture. Observations on the vertical-section microstructure of the fractured sample by scanning electron microscopy (SEM) show that the crack mainly originated from the brittle fracture of the eutectic phase causes the interface decohesion of the ductile Mg phase, making fracture a rather critical event. Before that, the deformation of ductile alpha-Mg phase in the matrix as well as the "pulling out" of primary alpha-Mg phase combines to provide the SSDC alloy a certain strain. (c) 2006 Elsevier B.V. All rights reserved.
关键词	microstructure mechanical property AZ91 magnesium semi-solid die-casting process
DOI	10.1016/j.matlet.2006.09.007
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000246158300053
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：59[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/89744
专题	中国科学院金属研究所
通讯作者	Zhang, Erlin
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Shenyang Inst Aeronaut Engn, Shenyang 110034, Peoples R China
推荐引用方式 GB/T 7714	Du, Xinghao,Zhang, Erlin. Microstructure and mechanical behaviour of semi-solid die-casting AZ91D magnesium alloy[J]. MATERIALS LETTERS,2007,61(11-12):2333-2337.
APA	Du, Xinghao,&Zhang, Erlin.(2007).Microstructure and mechanical behaviour of semi-solid die-casting AZ91D magnesium alloy.MATERIALS LETTERS,61(11-12),2333-2337.
MLA	Du, Xinghao,et al."Microstructure and mechanical behaviour of semi-solid die-casting AZ91D magnesium alloy".MATERIALS LETTERS 61.11-12(2007):2333-2337.