Enhancing the high-cycle fatigue strength of Mg-9Al-1Zn casting by friction stir processing

IMR OpenIR

	Enhancing the high-cycle fatigue strength of Mg-9Al-1Zn casting by friction stir processing
	D. R. Ni; D. Wang; A. H. Feng; G. Yao; Z. Y. Ma
	2009
发表期刊	Scripta Materialia
ISSN	1359-6462
卷号	61 期号:6 页码:568-571
摘要	Friction stir processing (FSP) of cast Mg-9Al-1Zn alloy plus subsequent aging produced a defect-free recrystallized fine-grained microstructure with fine beta-Mg(17)Al(12) particles. Compared to the as-cast parent material, the FSP sample exhibited significantly enhanced fatigue properties, with the fatigue strength being increased from similar to 45 to similar to 95 MPa and the fracture mode being changed from quasi-cleavage fracture to dimple fracture. The improvement was attributed to refinement of grains, elimination of porosities and coarse beta networks, and precipitation of fine beta particles. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[ni, d. r.; wang, d.; feng, a. h.; yao, g.; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Friction Stir Processing Magnesium Alloys Fatigue Fracture Crack Growth-behavior Magnesium Alloy Az91d Aluminum-alloys Microstructural Modification Mechanical-properties Mg Alloy A356
URL	查看原文
WOS记录号	WOS:000268371900004
引用统计	被引频次：54[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/321006/32216
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. R. Ni,D. Wang,A. H. Feng,et al. Enhancing the high-cycle fatigue strength of Mg-9Al-1Zn casting by friction stir processing[J]. Scripta Materialia,2009,61(6):568-571.
APA	D. R. Ni,D. Wang,A. H. Feng,G. Yao,&Z. Y. Ma.(2009).Enhancing the high-cycle fatigue strength of Mg-9Al-1Zn casting by friction stir processing.Scripta Materialia,61(6),568-571.
MLA	D. R. Ni,et al."Enhancing the high-cycle fatigue strength of Mg-9Al-1Zn casting by friction stir processing".Scripta Materialia 61.6(2009):568-571.