Microstructures and properties of Mg-7Gd alloy containing Y

	Microstructures and properties of Mg-7Gd alloy containing Y
	Peng QM ; Wu YM ; Fang DQ ; Meng J ; Wang LM
刊名	journal of alloys and compounds
	2007
卷号	430 期号:1-2 页码:252-256
关键词	RARE EARTH ALLOYS MG-GD ALLOYS ZR ALLOYS MAGNESIUM YTTRIUM PRECIPITATION TEMPERATURE DYSPROSIUM GADOLINIUM
ISSN号	0925-8388
通讯作者	wang lm
中文摘要	mg-7 mass%gd-x mass%y (x = 0, 1, 3 and 5) alloys were prepared by casting method, and the microstructures, age hardening behavior and mechanical properties have been investigated. the results show that the addition of y to the binary mg-7gd alloy could reduce the grain size of the as-cast alloys, and enhance the age hardening response and improve mechanical properties during the investigated temperature range. the mg-7gd-5y alloy exhibits maximum ultimate tensile strength and yield strength at peak hardness, and the values are 258 and 167 mpa at room temperature, and 212 and 140 mpa at 250 degrees c, respectively, which is about 1.8 times as high as the mg-7gd binary alloy. when x is more than 3, the amount of mg-5 (gd,y) phase is observed at the peak hardness of aged alloys. the significant improvement of the tensile strength at peak hardness is mainly attributed to the fine dispersion of the beta-mg-5(gd,y) precipitate.
收录类别	SCI
语种	英语
WOS记录号	WOS:000244826200045
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13705]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Peng QM,Wu YM,Fang DQ,et al. Microstructures and properties of Mg-7Gd alloy containing Y[J]. journal of alloys and compounds,2007,430(1-2):252-256.
APA	Peng QM,Wu YM,Fang DQ,Meng J,&Wang LM.(2007).Microstructures and properties of Mg-7Gd alloy containing Y.journal of alloys and compounds,430(1-2),252-256.
MLA	Peng QM,et al."Microstructures and properties of Mg-7Gd alloy containing Y".journal of alloys and compounds 430.1-2(2007):252-256.