Enhanced rate-dependent tensile deformation in equal channel angularly pressed Sn-Ag-Cu alloy

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	Enhanced rate-dependent tensile deformation in equal channel angularly pressed Sn-Ag-Cu alloy
	Q. S. Zhu; Z. G. Wang; S. D. Wu; J. K. Shang
	2009
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	502 期号:1-2 页码:153-158
摘要	Tensile stress-strain response of an equal channel angularly pressed (ECAPed) Sn-3.8Ag-0.7Cu alloy was investigated to seek a mechanistic understanding of the time-dependent deformation in Sn-rich alloys. It was found that the deformation behavior of the ECAPed alloy had a stronger rate-dependence than the as-cast alloy. At low strain rates, the ECAPed alloy exhibited a higher ductility but a lower flow stress. During tensile deformation, the equiaxed Sn grains were stretched into thin strips. In comparison, the slip steps were primary feature within single grain at high strain rates. The enhanced rate-dependence of the ECAPed alloy was related to greater tendency for grain boundary diffusion due to the increase in the grain boundary density. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[zhu, q. s.; wang, z. g.; wu, s. d.; shang, j. k.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [shang, j. k.] univ illinois, dept mat sci & engn, urbana, il 61801 usa.;shang, jk (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;jkshang@uiuc.edu
关键词	Sn-ag-cu Alloy Strain Rate Sensitivity Time-dependent Deformation Grain Boundary Diffusion Strain-rate Sensitivity Lead-free Solders Superplastic Deformation Temperature Joints Flow Microstructure Property Stresses
URL	查看原文
WOS记录号	WOS:000263812500024
引用统计	被引频次：19[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/321006/32634
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. S. Zhu,Z. G. Wang,S. D. Wu,et al. Enhanced rate-dependent tensile deformation in equal channel angularly pressed Sn-Ag-Cu alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,502(1-2):153-158.
APA	Q. S. Zhu,Z. G. Wang,S. D. Wu,&J. K. Shang.(2009).Enhanced rate-dependent tensile deformation in equal channel angularly pressed Sn-Ag-Cu alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,502(1-2),153-158.
MLA	Q. S. Zhu,et al."Enhanced rate-dependent tensile deformation in equal channel angularly pressed Sn-Ag-Cu alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 502.1-2(2009):153-158.