Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al-Cu alloys

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	Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al-Cu alloys
	D. R. Fang; Z. F. Zhang; S. D. Wu; C. X. Huang; H. Zhang; N. Q. Zhao; J. J. Li
	2006
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	426 期号:1-2 页码:305-313
摘要	Tensile strength, elongation, static toughness and fracture modes of casting Al-0.63 wt.% Cu and Al-3.9 wt.% Cu alloys subjected to equal channel angular pressing (ECAP) were investigated. It is found that the grains of the two alloys can be refined to submicron level after four passes of ECAP In addition, precipitation phase theta along grain boundaries in the Al-3.9 wt.% Cu alloy was also broken after ECAP treatment. The tensile fracture strength increases with increasing ECAP pass for both of the Al-Cu alloys, however, the elongation is almost independent of the ECAP pass. Consequently, the static toughness of the Al-Cu alloys is enhanced at high ECAP pass. The failure modes of Al-0.63 wt.% Cu alloy consist of necking and shear fracture, however, Al-3.9 wt.% Cu alloy displays normal fracture and shear fracture with different shear angle. Based on the results above, the tensile properties and failure modes of the Al-Cu alloys are discussed. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. tianjin univ, sch mat sci & engn, tianjin 300072, peoples r china.;zhang, zf (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhfzhang@imr.ac.cn
关键词	Al-cu Alloys Equal Channel Angular Pressing (Ecap) Tensile Strength Elongation Static Toughness Fracture Modes Mechanical-properties Texture Development Mg Alloy Microstructure Extrusion Aluminum Shear Deformation Strain
URL	查看原文
WOS记录号	WOS:000241152000042
引用统计	被引频次：92[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/321006/34193
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. R. Fang,Z. F. Zhang,S. D. Wu,et al. Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al-Cu alloys[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,426(1-2):305-313.
APA	D. R. Fang.,Z. F. Zhang.,S. D. Wu.,C. X. Huang.,H. Zhang.,...&J. J. Li.(2006).Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al-Cu alloys.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,426(1-2),305-313.
MLA	D. R. Fang,et al."Effect of equal channel angular pressing on tensile properties and fracture modes of casting Al-Cu alloys".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 426.1-2(2006):305-313.