Microstructure of corrosion product film formed on aged WE43 alloy

doi:10.1016/S1003-6326(24)66485-X

IMR OpenIR

	Microstructure of corrosion product film formed on aged WE43 alloy
	Cai, Yong 1,2; Chen, Yi-peng 1,2; Yan, Hong 1,2,3; Chen, Rong-shi 2
通讯作者	Yan, Hong(yanhong5871@163.com) ; Chen, Rong-shi(rschen@imr.ac.cn)
	2024-05-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	34 期号:5 页码:1487-1495
摘要	A dense three-layer corrosion product film was formed on aged WE43 alloy in 3.5 wt.% NaCl solution. The microstructure of the film was analyzed in detail by TEM. The three-layer corrosion product film is composed of RE2O3, MgO layer doped with RE2O3 and Mg(OH)(2) layer doped with RE2O3 from the inside to the outside. A large amount of rare earth oxide particles formed both by the outward oxidation of rare earth precipitates and rare earth elements, are the main reason for the formation of the corrosion film. The RE2O3 has the preferential orientation with (211) plane and [231] direction parallel to (002) plane and [(1) over bar(1) over bar0] direction of MgO, respectively. Thus, the rare earth oxide particles can fill the gap of porous MgO layer, and improve the compactness of the film. The inner RE2O3 layer and mixed layer of MgO and RE2O3 play an important role in the formation of the film. The compact inner film can prevent the corrosion medium from reacting with the Mg matrix.
关键词	magnesium alloy corrosion product film HRTEM precipitate oxidation
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province, China ; Natural Science Foundation of Shandong Province, China
DOI	10.1016/S1003-6326(24)66485-X
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52271107] ; Natural Science Foundation of Liaoning Province, China[2020-MS-004] ; Natural Science Foundation of Shandong Province, China[ZR2021ME241]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001288116700001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188981
专题	中国科学院金属研究所
通讯作者	Yan, Hong; Chen, Rong-shi
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Cai, Yong,Chen, Yi-peng,Yan, Hong,et al. Microstructure of corrosion product film formed on aged WE43 alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2024,34(5):1487-1495.
APA	Cai, Yong,Chen, Yi-peng,Yan, Hong,&Chen, Rong-shi.(2024).Microstructure of corrosion product film formed on aged WE43 alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,34(5),1487-1495.
MLA	Cai, Yong,et al."Microstructure of corrosion product film formed on aged WE43 alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 34.5(2024):1487-1495.