Effects of Gd concentration on microstructure, texture and tensile properties of Mg-Zn-Gd alloys subjected to large strain hot rolling

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	Effects of Gd concentration on microstructure, texture and tensile properties of Mg-Zn-Gd alloys subjected to large strain hot rolling
	J. Luo; H. Yan; R. S. Chen; E. H. Han
	2014
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	614 页码:88-95
摘要	The Mg-2.0Zn-(0.1, 0.3)Gd (wt%) alloy sheets were fabricated by single pass large strain hot rolling at 300 degrees C with 80% reduction and their microstructure, texture and tensile properties were investigated. A fully recrystallized microstructure and weak basal texture were observed in the rolled Mg-2.0Zn-0.1Gd sheet while a heterogeneous, deformed microstructure consisting of many shear bands and numerous intersected twins was found in the rolled Mg-2.0Zn-0.3Gd sheet. The RD-tilting double-peaks texture component was observed in both alloys and indicated that the pyramidal < c+a > slip was activated during the rolling process. Texture evolution revealed that the texture weakening effect owing to the growth advantages of the non-basal orientated grains which nucleated at shear bands. Room temperature tensile testing demonstrated that the annealed Mg-2.0Zn-0.3Gd sheet showed a high elongation to failure of 35% while the annealed Mg-2.0Zn-0.1Gd sheet showed a low ductility of about 20% which were due to different textures. (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[luo, jun ; yan, hong ; chen, rong-shi ; han, en-hou] chinese acad sci, inst met res, grp magnesium alloys & their applicat, shenyang 110016, peoples r china. [luo, jun] univ chinese acad sci, beijing 100049, peoples r china. ; chen, rs (reprint author), chinese acad sci, inst met res, grp magnesium alloys & their applicat, shenyang 110016, peoples r china. ; rschen@imr.ac.cn
关键词	Magnesium Alloys Large Strain Hot Rolling Texture Plasticity Shear Bands Room-temperature Mechanical-properties Stretch Formability Magnesium Alloy Initial Texture Deformation Evolution Sheets Recrystallization Ductility
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73332
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Luo,H. Yan,R. S. Chen,et al. Effects of Gd concentration on microstructure, texture and tensile properties of Mg-Zn-Gd alloys subjected to large strain hot rolling[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2014,614:88-95.
APA	J. Luo,H. Yan,R. S. Chen,&E. H. Han.(2014).Effects of Gd concentration on microstructure, texture and tensile properties of Mg-Zn-Gd alloys subjected to large strain hot rolling.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,614,88-95.
MLA	J. Luo,et al."Effects of Gd concentration on microstructure, texture and tensile properties of Mg-Zn-Gd alloys subjected to large strain hot rolling".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 614(2014):88-95.