Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing

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	Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing; Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing
	Z. J. Zhang; Q. Q. Duan; X. H. An; S. D. Wu; G. Yang; Z. F. Zhang
	2011 ; 2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing ; Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093 ; 0921-5093
卷号	528 期号:12 页码:4259-4267
摘要	Ultrafine-grained (UFG) Cu and Cu-Zn alloy were prepared using equal-channel angular pressing (ECAP) to investigate the effects of stacking fault energy (SFE) on microstructure evolution and mechanical properties. Combining with the previous researches, the grain refinement process of ECAP is divided into three stages based on the variation of tensile strength and plasticity. According to the influences of defects on strength and ductility during plastic deformation, the three stages are discussed in detail by considering the dislocation density, grain and twin boundaries. Besides, the impact of SFE on the strength and ductility of the UFG Cu-Zn alloys are evaluated, indicating that these two mechanical properties can be improved simultaneously in the whole ECAP process either through slightly or widely adjusting the SFE. This significant effect of SFE reflects in two aspects, one is in the microstructure evolution during ECAP processing and the other is in the subsequent tensile plastic deformation, both of which can be achieved through regulating the dislocation motion via changing the SFE. (C) 2011 Elsevier B.V. All rights reserved.; Ultrafine-grained (UFG) Cu and Cu-Zn alloy were prepared using equal-channel angular pressing (ECAP) to investigate the effects of stacking fault energy (SFE) on microstructure evolution and mechanical properties. Combining with the previous researches, the grain refinement process of ECAP is divided into three stages based on the variation of tensile strength and plasticity. According to the influences of defects on strength and ductility during plastic deformation, the three stages are discussed in detail by considering the dislocation density, grain and twin boundaries. Besides, the impact of SFE on the strength and ductility of the UFG Cu-Zn alloys are evaluated, indicating that these two mechanical properties can be improved simultaneously in the whole ECAP process either through slightly or widely adjusting the SFE. This significant effect of SFE reflects in two aspects, one is in the microstructure evolution during ECAP processing and the other is in the subsequent tensile plastic deformation, both of which can be achieved through regulating the dislocation motion via changing the SFE. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[zhang, z. j.; duan, q. q.; an, x. h.; wu, s. d.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [yang, g.] cent iron & steel res inst, beijing 100081, 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 ; [zhang, z. j.; duan, q. q.; an, x. h.; wu, s. d.; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [yang, g.] cent iron & steel res inst, beijing 100081, 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-zn Alloy Cu-zn Alloy Stacking Fault Energy (Sfe) Stacking Fault Energy (Sfe) Equal Channeling Angular Equal Channeling Angular Pressing (Ecap) Pressing (Ecap) Strengthen Strengthen Ductility Ductility Stacking-fault Energy Stacking-fault Energy Severe Plastic-deformation Severe Plastic-deformation High-pressure High-pressure Torsion Torsion Slip Mode Modification Slip Mode Modification Ultrafine-grained Cu Ultrafine-grained Cu Fcc Fcc Solid-solutions Solid-solutions Nanostructured Materials Nanostructured Materials Simple Shear Simple Shear Al Alloys Al Alloys Copper Copper
URL	查看原文 ; 查看原文
WOS记录号	WOS:000289389400045 ; WOS:000289389400045
引用统计	被引频次：81[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/321006/30945
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Zhang,Q. Q. Duan,X. H. An,et al. Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing, Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011, 2011,528, 528(12):4259-4267, 4259-4267.
APA	Z. J. Zhang,Q. Q. Duan,X. H. An,S. D. Wu,G. Yang,&Z. F. Zhang.(2011).Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(12),4259-4267.
MLA	Z. J. Zhang,et al."Microstructure and mechanical properties of Cu and Cu-Zn alloys produced by equal channel angular pressing".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.12(2011):4259-4267.