Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy

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	Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy
	Jia, Hongmin ; Feng, Xiaohui ; Yang, Yuansheng
刊名	CORROSION SCIENCE
	2017-05-15
卷号	120 页码:75-81
关键词	Directional solidification Mg-2Zn alloy Microstructure evolution Corrosion resistance
ISSN号	0010-938X
通讯作者	Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
中文摘要	The microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy with different growth rates were investigated. Optical microscopy observations showed that the microstructure of directionally solidified Mg-2Zn alloy transformed from coarse cellular to fine cellular, undeveloped dendritic and finally dendritic structures as the growth rate increased from 20 mu m/s to 60 mu m/s, 120 mu m/s and 200 mu m/s, respectively. The results of electrochemical measurement and immersion test in 0.9 wt.% NaCl solution revealed that the corrosion resistance of directionally solidified Mg-2Zn alloy strongly depends on the microstructure. The samples with fine cellular structure have the highest corrosion resistance, which mainly due to the reduction of susceptible grain boundaries and homogenous distribution of Zn element. (C) 2017 Elsevier Ltd. All rights reserved.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别	SCI
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78135]
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	Jia, Hongmin,Feng, Xiaohui,Yang, Yuansheng. Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy[J]. CORROSION SCIENCE,2017,120:75-81.
APA	Jia, Hongmin,Feng, Xiaohui,&Yang, Yuansheng.(2017).Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy.CORROSION SCIENCE,120,75-81.
MLA	Jia, Hongmin,et al."Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy".CORROSION SCIENCE 120(2017):75-81.