Mechanically activated effect of friction stir processing in Al-Ti reaction

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	Mechanically activated effect of friction stir processing in Al-Ti reaction
	Q. Zhang; B. L. Xiao; Z. Y. Ma
	2013
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	139 期号:2-3 页码:596-602
摘要	The kinetics of the Al-Ti reaction during isothermal annealing and friction stir processing (FSP) was studied. The Al-Ti reaction was diffusion controlled during annealing at 525-550 degrees C and interfacial-reaction controlled at 575-650 degrees C, whereas the reaction during FSP with tool rotation rates of 1000 and 2000 rpm was interfacial-reaction controlled. The reaction rate constant k during FSP is substantially enhanced compared with that during annealing. This is attributed to the decrease in activation energy caused by severe deformation during FSP. The effective temperature was proposed to show the contribution of the mechanically activated effect of FSP, and was calculated to be 710 and 716 degrees C for FSP with rotation rates of 1000 and 2000 rpm. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[zhang, q. ; xiao, b. l. ; 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	Annealing Chemical Synthesis Diffusion Powder Metallurgy Solid-state Reaction In-situ Diffusion Alloys Titanium Aluminum System Layer
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71691
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Zhang,B. L. Xiao,Z. Y. Ma. Mechanically activated effect of friction stir processing in Al-Ti reaction[J]. Materials Chemistry and Physics,2013,139(2-3):596-602.
APA	Q. Zhang,B. L. Xiao,&Z. Y. Ma.(2013).Mechanically activated effect of friction stir processing in Al-Ti reaction.Materials Chemistry and Physics,139(2-3),596-602.
MLA	Q. Zhang,et al."Mechanically activated effect of friction stir processing in Al-Ti reaction".Materials Chemistry and Physics 139.2-3(2013):596-602.