Effect of purification treatment on corrosion resistance of Mg-Gd-Y-Zr alloy

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	Effect of purification treatment on corrosion resistance of Mg-Gd-Y-Zr alloy
	J. Wang; Y. S. Yang; W. H. Tong
	2011
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	21 期号:4 页码:949-954
摘要	Mg-Gd-Y-Zr alloys were purified by filtering purification with and without vacuum. The type, morphology, size distribution and volume fraction of inclusion were analyzed with OM and SEM. The effect of inclusion in Mg-Gd-Y-Zr alloys on anticorrosion ability was investigated with salt spray test and electrochemical test. The results show that the inclusions in the alloy can be removed effectively by filtering purification. The average size of inclusions in the alloys is decreased from 12.7 mu m to 2.0 mu m and the volume fraction of inclusions is reduced from 0.30% to 0.04%. With the decrease of the size of inclusions in the alloys, the corrosion rate of the alloys decreases dramatically from 38.8 g/(m(2).d) to 2.4 g/(m(2).d) in the salt spray test. The corrosion potential increases while the corrosion current decreases and the polarization resistance increases in the electrochemical tests, which indicates that the anticorrosion ability is improved.
部门归属	[wang jie; yang yuan-sheng; tong wen-hui] chinese acad sci, inst met res, shenyang 110016, peoples r china.;yang, ys (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn
关键词	Mg-gd-y-zr Alloy Filtering Purification Inclusion Corrosion Rate Polarization Curve Polarization Resistance Mechanical-properties Magnesium Alloy Flux Microstructure Inclusions
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WOS记录号	WOS:000290515800038
引用统计	被引频次：15[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/321006/30728
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Wang,Y. S. Yang,W. H. Tong. Effect of purification treatment on corrosion resistance of Mg-Gd-Y-Zr alloy[J]. Transactions of Nonferrous Metals Society of China,2011,21(4):949-954.
APA	J. Wang,Y. S. Yang,&W. H. Tong.(2011).Effect of purification treatment on corrosion resistance of Mg-Gd-Y-Zr alloy.Transactions of Nonferrous Metals Society of China,21(4),949-954.
MLA	J. Wang,et al."Effect of purification treatment on corrosion resistance of Mg-Gd-Y-Zr alloy".Transactions of Nonferrous Metals Society of China 21.4(2011):949-954.

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