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Microstructure and corrosion resistance of directionally solidified Mg-2 wt.% Zn alloy
Jia, Hongmin; Feng, Xiaohui; Yang, Yuansheng; Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017-05-15
发表期刊CORROSION SCIENCE
ISSN0010-938X
卷号120页码:75-81
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.; 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.
部门归属[jia, hongmin ; feng, xiaohui ; yang, yuansheng] chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [yang, yuansheng] shandong key lab high strength lightweight metall, jinan 250014, peoples r china
关键词Directional Solidification Mg-2zn Alloy Microstructure Evolution Corrosion Resistance
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78135
专题中国科学院金属研究所
通讯作者Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Jia, Hongmin,Feng, Xiaohui,Yang, Yuansheng,et al. 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,&Yang, YS .(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.
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