Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state

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	Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state
	L. Gao; S. M. Liang; R. S. Chen; E. H. Han
	2010
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	20 期号:9 页码:1585-1590
摘要	The microstructure evolution of an extruded Mg-8.57Gd-3.72Y-0.54Zr (mass fraction, %, GW94) alloy during reheating into the semisolid state was investigated using optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). Typical semisolid microstructure with globular solid particles distributed in the liquid matrix is obtained over 600 C. The solid content of (Gd+Y) in the primary alpha-Mg particles decreases with increasing the semisolid temperature. With the prolongation of isothermal holding time, the liquid fraction does not change significantly, while the grains grow up and spheroidize. Three methods used to determine the liquid fraction as a function of temperature, namely quantitative metallography on quenched microstructures, cooling curve thermal analysis, and thermodynamic calculations were further compared.
部门归属	[gao lei; liang song-mao; chen rong-shi; han en-hou] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. [gao lei] chinese acad sci, grad sch, beijing 100039, peoples r china.;chen, rs (reprint author), chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china;rongshichen@yahoo.com
关键词	Semisolid Mg-gd-y Alloy Partial Remelting Microstructural Evolution Magnesium Alloy Fraction System
URL	查看原文
WOS记录号	WOS:000282373800006
引用统计	被引频次：4[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/321006/31115
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Gao,S. M. Liang,R. S. Chen,et al. Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state[J]. Transactions of Nonferrous Metals Society of China,2010,20(9):1585-1590.
APA	L. Gao,S. M. Liang,R. S. Chen,&E. H. Han.(2010).Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state.Transactions of Nonferrous Metals Society of China,20(9),1585-1590.
MLA	L. Gao,et al."Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state".Transactions of Nonferrous Metals Society of China 20.9(2010):1585-1590.