Effect of Alclad Layer on Material Flow and Defect Formation in Friction-Stir-Welded 2024 Aluminum Alloy

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	Effect of Alclad Layer on Material Flow and Defect Formation in Friction-Stir-Welded 2024 Aluminum Alloy
	Z. Zhang; B. L. Xiao; D. Wang; Z. Y. Ma
	2011
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	42A 期号:6 页码:1717-1726
摘要	The effect of the Alclad layer on material flow and defect formation during friction-stir welding (FSW) of 6.5-mm-thick 2024Al-T351 alloy plates was investigated. To characterize the material flow during FSW, different cross sections of the keyhole and "stop-action weld" were made for metallographic observations. It was found that the top Alclad assembled at the shoulder/workpiece interface, thereby weakening the material flow in the shoulder-driven zone and favoring the formation of void defect at high traveling speeds. The bottom Alclad layer extended into the weld at excess material flow state, which could be avoided at balanced material flow state. A conceptual model of material flow was proposed to describe the formation of the weld. It was indicated that a perfect FSW joint of Alclad 2024Al alloy without defect could be obtained at an optimum FSW condition.
部门归属	[zhang, z.; xiao, b. l.; wang, d.; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, z (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Zone Microstructure Visualization Parameters Behavior Tool
URL	查看原文
WOS记录号	WOS:000290176100035
引用统计	被引频次：51[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/321006/30933
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Zhang,B. L. Xiao,D. Wang,et al. Effect of Alclad Layer on Material Flow and Defect Formation in Friction-Stir-Welded 2024 Aluminum Alloy[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2011,42A(6):1717-1726.
APA	Z. Zhang,B. L. Xiao,D. Wang,&Z. Y. Ma.(2011).Effect of Alclad Layer on Material Flow and Defect Formation in Friction-Stir-Welded 2024 Aluminum Alloy.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,42A(6),1717-1726.
MLA	Z. Zhang,et al."Effect of Alclad Layer on Material Flow and Defect Formation in Friction-Stir-Welded 2024 Aluminum Alloy".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 42A.6(2011):1717-1726.