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Different role of second phase in the micro-galvanic corrosion of WE43 Mg alloy in NaCl and Na2SO4 solution

文献类型：期刊论文

作者Feng, Baojing1,2; Liu, Guonan1,2; Yang, Peixu1,2; Huang, Sensen3; Qi, Dongqing4; Chen, Peng5; Wang, Chengduo1,2; Du, Jiang1,2; Zhang, Shaojun1,2; Liu, Jinhui1,2
刊名JOURNAL OF MAGNESIUM AND ALLOYS
出版日期2022-06-01
卷号10期号:6页码:1598-1608
关键词Mg rare earth alloy Second phase Micro-galvanic corrosion Anode role Solution anion
ISSN号2213-9567
DOI10.1016/j.jma.2020.12.013
通讯作者Liu, Jinhui(liujinhui@zzu.edu.cn)
英文摘要Effect of the second phase in the micro-galvanic corrosion of a commercial Mg alloy containing rare earth elements, cast WE43 alloy, was investigated in 0.6M NaCl solution and 0.6M Na2SO4 solution by scanning electron microscopy (SEM) observations, scanning Kelvin probe force microscopy (SKPFM) analysis, hydrogen evolution, weight loss measurement, and electrochemical techniques. It is confirmed that the second phase of cast WE43 alloy is more active than Mg matrix and exhibits an anodic role in the micro-galvanic corrosion with a-Mg matrix as cathode and dissolves preferentially in Na2SO4 solution, in contrast to the situation in NaCl solution. The corrosion rate of cast WE43 alloy in Na2SO4 solution is much higher than that in NaCl solution, which is different from the conventional wisdom and could be attributed to the different role of the second phase in the micro-galvanic corrosion in two solutions. (C) 2019 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
资助项目National Key Research and Development Program of China[2016YFB0301001] ; National Key Research and Development Program of China[2016YFB0301101] ; Major Projects for Collaborative Innovation of Zhengzhou[18XTZX12010] ; Certificate of Postdoctoral Research Grant in Henan Province[201903011]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000856020400001
出版者KEAI PUBLISHING LTD
资助机构National Key Research and Development Program of China ; Major Projects for Collaborative Innovation of Zhengzhou ; Certificate of Postdoctoral Research Grant in Henan Province
源URL[http://ir.imr.ac.cn/handle/321006/175560]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Jinhui
作者单位1.Zhengzhou Univ, Henan Prov Ind Technol Res Inst Resources & Mat, 100 Sci Ave, Zhengzhou 450001, Peoples R China
2.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
4.Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
5.Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA
推荐引用方式
GB/T 7714		 Feng, Baojing,Liu, Guonan,Yang, Peixu,et al. Different role of second phase in the micro-galvanic corrosion of WE43 Mg alloy in NaCl and Na2SO4 solution[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2022,10(6):1598-1608.
APA Feng, Baojing.,Liu, Guonan.,Yang, Peixu.,Huang, Sensen.,Qi, Dongqing.,...&Liu, Jinhui.(2022).Different role of second phase in the micro-galvanic corrosion of WE43 Mg alloy in NaCl and Na2SO4 solution.JOURNAL OF MAGNESIUM AND ALLOYS,10(6),1598-1608.
MLA Feng, Baojing,et al."Different role of second phase in the micro-galvanic corrosion of WE43 Mg alloy in NaCl and Na2SO4 solution".JOURNAL OF MAGNESIUM AND ALLOYS 10.6(2022):1598-1608.

入库方式： OAI收割

来源：金属研究所

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