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
刊名	Transactions of Nonferrous Metals Society of China
	2010
卷号	20 期号:9 页码:1585-1590
关键词	semisolid Mg-Gd-Y alloy partial remelting microstructural evolution magnesium alloy fraction system
ISSN号	1003-6326
中文摘要	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.
原文出处	://WOS:000282373800006
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31115]
专题	金属研究所_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.