Microstructural evolution and shear fracture of Cu-16 at.% Al alloy induced by equal channel angular pressing

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	Microstructural evolution and shear fracture of Cu-16 at.% Al alloy induced by equal channel angular pressing
	X. H. An; Q. Y. Lin; S. D. Wu; Z. F. Zhang
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:16-17 页码:4510-4514
摘要	Microstructural evolution and shear segmentation of Cu-16 at.% Al alloy with extremely low stacking fault energy (SFE) subjected to multiple-pass equal channel angular pressing (ECAP) were investigated. With increasing plastic deformation, the accommodation of the severe shear strain is transformed from the dislocation slip, stacking faults and deformation twins on the lattice scale to the microshear bands on the grain scale during one- and two-pass ECAP. However, shear fracture happened due to the formation of macroscale shear bands, which can be ascribed to its extremely low SFE leading to the easy saturation of microscale shear bands during plastic deformation during third-pass ECAP. Furthermore, the effects of the SFE on microstructures, grain refinement and shear fracture of various fcc metals were discussed. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[an, x. h.; lin, q. y.; wu, s. d.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Cu-al Alloys Stacking Fault Energy (Sfe) Equal Channel Angular Pressing (Ecap) Microstructure Shear Band Stacking-fault Energy High-pressure Torsion Mechanical-properties Room-temperature Nanostructure Formation Plastic-deformation Single-crystal Grain-size Metals Copper
URL	查看原文
WOS记录号	WOS:000278766800116
引用统计	被引频次：50[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/321006/31008
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. H. An,Q. Y. Lin,S. D. Wu,et al. Microstructural evolution and shear fracture of Cu-16 at.% Al alloy induced by equal channel angular pressing[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(16-17):4510-4514.
APA	X. H. An,Q. Y. Lin,S. D. Wu,&Z. F. Zhang.(2010).Microstructural evolution and shear fracture of Cu-16 at.% Al alloy induced by equal channel angular pressing.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(16-17),4510-4514.
MLA	X. H. An,et al."Microstructural evolution and shear fracture of Cu-16 at.% Al alloy induced by equal channel angular pressing".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.16-17(2010):4510-4514.