Effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of a Mg-Zn-Y-Zr alloy

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	Effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of a Mg-Zn-Y-Zr alloy
	W. N. Tang; R. S. Chen; J. Zhou; E. H. Han
	2009
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	499 期号:1-2 页码:404-410
摘要	Single-pass equal channel angular extrusion (ECAE) experiments of an extruded Mg-Zn-Y-Zr alloy with an intense initial basal texture were performed in two inter-perpendicular billet orientations and at 473 and 623 K. The study was aimed to determine the effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of the ECAEed alloy. It was found that the grain refinement achieved through the single-pass ECAE in the Orient-I billet orientation (the normal direction (ND) of the extruded plate parallel with the ECAE exit direction) was more effective than that in the Orient-II billet orientation (the ND of the extruded plate perpendicular to the ECAE exit direction). The average grain sizes after ECAE at 473 K were much smaller than those after ECAE at 623 K. The pole figures of the alloy ECAEed at 473 K showed that most of the basal planes in the Orient-I and Orient-II samples were inclined about 40 and 35, respectively, with respect to the longitudinal direction of the ECAE extrudate. However, for the alloy ECAEed at 623 K, most of the basal planes were parallel with the longitudinal direction of the ECAE extrudate. It was remarkable that the yield strengths of the alloy ECAEed at 473 K were lower than those at 623 K. The peculiar relationship between ECAE temperature and the mechanical properties of the alloy was ascribed to the texture evolution during ECAE. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[tang, w. n.; chen, r. s.; han, e. h.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [zhou, j.] delft univ technol, dept mat sci & engn, nl-2628 cd delft, netherlands. [tang, w. n.] chinese acad sci, grad sch, shenyang 110016, peoples r china.;chen, rs (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;rschen@imr.ac.cn
关键词	Magnesium Mg-zn-y-zr Alloy Equal Channel Angular Extrusion (Ecae) Texture Mechanical Property Az31 Magnesium Alloy Channel Angular Extrusion Tensile Properties Ductility Deformation Enhancement Behavior
URL	查看原文
WOS记录号	WOS:000261703300085
引用统计	被引频次：55[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/321006/32325
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. N. Tang,R. S. Chen,J. Zhou,et al. Effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of a Mg-Zn-Y-Zr alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,499(1-2):404-410.
APA	W. N. Tang,R. S. Chen,J. Zhou,&E. H. Han.(2009).Effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of a Mg-Zn-Y-Zr alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,499(1-2),404-410.
MLA	W. N. Tang,et al."Effects of ECAE temperature and billet orientation on the microstructure, texture evolution and mechanical properties of a Mg-Zn-Y-Zr alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 499.1-2(2009):404-410.