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

doi:10.1016/j.jma.2020.12.013

IMR OpenIR

	Different role of second phase in the micro-galvanic corrosion of WE43 Mg alloy in NaCl and Na2SO4 solution
	Feng, Baojing 1,2; Liu, Guonan 1,2; Yang, Peixu 1,2; Huang, Sensen 3; Qi, Dongqing 4; Chen, Peng 5; Wang, Chengduo 1,2; Du, Jiang 1,2; Zhang, Shaojun 1,2; Liu, Jinhui 1,2
通讯作者	Liu, Jinhui(liujinhui@zzu.edu.cn)
	2022-06-01
发表期刊	JOURNAL OF MAGNESIUM AND ALLOYS
ISSN	2213-9567
卷号	10 期号:6 页码:1598-1608
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.
关键词	Mg rare earth alloy Second phase Micro-galvanic corrosion Anode role Solution anion
资助者	National Key Research and Development Program of China ; Major Projects for Collaborative Innovation of Zhengzhou ; Certificate of Postdoctoral Research Grant in Henan Province
DOI	10.1016/j.jma.2020.12.013
收录类别	SCI
语种	英语
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
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000856020400001
出版者	KEAI PUBLISHING LTD
引用统计	被引频次：58[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/321006/175561
专题	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.