Thixoformability of a Mg-Gd-Y magnesium alloy and its mechanical properties

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	Thixoformability of a Mg-Gd-Y magnesium alloy and its mechanical properties
	L. Gao; R. S. Chen; E. H. Han
	2011
发表期刊	Materials Science and Technology
ISSN	0961-5652
卷号	27 期号:6 页码:1084-1091
摘要	A new magnesium alloy with composition of Mg-8.57Gd-3.72Y-0.54Zr (wt-%, GW94) amenable to semisolid forming is presented. A quantitative investigation of its thixoformability in terms of metallurgical parameters in the semisolid state is performed based on Pandat thermodynamic calculation. The optimised working window for thixoforming is from 581 to 605uC, where the volume fraction of liquid does not change significantly with temperature. The alloy is then successfully thixoformed at 600 degrees C, and a typical thixotropicmicrostructure is obtained. It is shown that significant improvement of mechanical properties is achieved in the thixoformed (TF) GW94 alloy compared to its permanent mould casting counterpart. This is attributed to an obvious decrease in the amount of porosity and fine distribution of the brittle Mg(24)(Gd,Y)(5) particles in the thixoforming process.
部门归属	[gao, l.; chen, r. s.; han, e. h.] chinese acad sci, inst met res, state key lab corros & protect, shenyang, peoples r china. [gao, l.] chinese acad sci, grad univ, beijing, peoples r china.;chen, rs (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang, peoples r china;rongshichen@yahoo.com
关键词	Mg-gd-y Magnesium Alloy Thermodynamic Calculation Semisolid Thixoforming Mechanical Properties Thermodynamic Predictions Microstructure Behavior Selection Fraction Elements System Az91
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WOS记录号	WOS:000291551000017
引用统计	被引频次：8[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/321006/30340
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Gao,R. S. Chen,E. H. Han. Thixoformability of a Mg-Gd-Y magnesium alloy and its mechanical properties[J]. Materials Science and Technology,2011,27(6):1084-1091.
APA	L. Gao,R. S. Chen,&E. H. Han.(2011).Thixoformability of a Mg-Gd-Y magnesium alloy and its mechanical properties.Materials Science and Technology,27(6),1084-1091.
MLA	L. Gao,et al."Thixoformability of a Mg-Gd-Y magnesium alloy and its mechanical properties".Materials Science and Technology 27.6(2011):1084-1091.

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