A Transient Thermal Model for Friction Stir Weld. Part I: The Model

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	A Transient Thermal Model for Friction Stir Weld. Part I: The Model
	X. X. Zhang; B. L. Xiao; 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:10 页码:3218-3228
摘要	Current analytical thermal models for friction stir welding (FSW) are mainly focused on the steady-state condition. To better understand the FSW process, we propose a transient thermal model for FSW, which considers all the periods of FSW. A temperature-dependent apparent friction coefficient solved by the inverse solution method (ISM) is used to estimate the heat generation rate. The physical reasonableness, self-consistency, and relative achievements of this model are discussed, and the relationships between the heat generation, friction coefficient, and temperature are established. The negative feedback mechanism and positive feedback mechanism are proposed for the first time and found to be the dominant factors in controlling the friction coefficient, heat generation, and in turn the temperature. Furthermore, the negative feedback mechanism is found to be the controller of the steady-state level of FSW. The validity of the proposed model is proved by applying it to FSW of the 6061-T651 and 6063-T5 aluminum alloys.
部门归属	[zhang, x. x.; xiao, b. l.; ma, z. y.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;zhang, xx (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Material Flow 3-dimensional Heat Fem Model Aluminum Parameters Microstructure Temperature Simulation History Tool
URL	查看原文
WOS记录号	WOS:000293969900030
引用统计	被引频次：71[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/321006/30924
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Zhang,B. L. Xiao,Z. Y. Ma. A Transient Thermal Model for Friction Stir Weld. Part I: The Model[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2011,42A(10):3218-3228.
APA	X. X. Zhang,B. L. Xiao,&Z. Y. Ma.(2011).A Transient Thermal Model for Friction Stir Weld. Part I: The Model.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,42A(10),3218-3228.
MLA	X. X. Zhang,et al."A Transient Thermal Model for Friction Stir Weld. Part I: The Model".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 42A.10(2011):3218-3228.