Influence of texture on superplastic behavior of friction stir processed ZK60 magnesium alloy

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	Influence of texture on superplastic behavior of friction stir processed ZK60 magnesium alloy
	Q. Yang; A. H. Feng; B. L. Xiao; Z. Y. Ma
	2012
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	556 页码:671-677
摘要	Commercial ZK60 extruded plate was subjected to friction stir processing (FSP). A fine-grained structure 2.9 mu m in grain size with uniformly distributed fine second-phase particles and predominant high-angle grain boundaries of 97% was obtained. A strong basal fiber texture with the (0002) planes roughly surrounding the tool pin surface was developed in the FSP ZK60 alloy. The FSP ZK60 alloy exhibited superplastic behavior at 225-325 degrees C in both the transverse direction (TD) and longitudinal direction (LD), with the superplastic elongation in the LD being higher than that in the TD. A maximum elongation of 1390% was obtained at 300 degrees C and 3 x 10(-4) s(-1) in the LD. The existence of texture was found to influence the superplastic flow stress and plasticity. The texture had a minor influence on the flow stress, due to the texture weakening during superplastic deformation. However, the anisotropy of plasticity existed at all temperatures and strain rates, as a result of the activation of different slip systems in different tensile directions. (c) 2012 Elsevier B.V. All rights reserved.
部门归属	[yang, q.; feng, a. h.; xiao, b. l.; ma, z. y.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;ma, zy (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china.;zyma@imr.ac.cn
关键词	Superplasticity Magnesium Alloys Friction Stir Processing Texture Low-temperature Superplasticity Strain Rate Superplasticity Y-zr Alloy Mechanical-properties Mg Deformation Az31 Evolution Ductility Slip
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60395
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Yang,A. H. Feng,B. L. Xiao,et al. Influence of texture on superplastic behavior of friction stir processed ZK60 magnesium alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,556:671-677.
APA	Q. Yang,A. H. Feng,B. L. Xiao,&Z. Y. Ma.(2012).Influence of texture on superplastic behavior of friction stir processed ZK60 magnesium alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,556,671-677.
MLA	Q. Yang,et al."Influence of texture on superplastic behavior of friction stir processed ZK60 magnesium alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 556(2012):671-677.