A comparative study on the corrosion behavior of AZ80 and EW75 Mg alloys in industrial atmospheric environment

doi:10.1016/j.mtcomm.2024.108263

IMR OpenIR

	A comparative study on the corrosion behavior of AZ80 and EW75 Mg alloys in industrial atmospheric environment
	Song, Yingwei 1; Dai, Jiaming 2; Sun, Shuo 2
通讯作者	Song, Yingwei(ywsong@imr.ac.cn)
	2024-03-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	38 页码:12
摘要	Mg alloys exposed in different environments, atmospheric pollutants and meteorological factors as well as the microstructure of Mg substrate have an important influence on their corrosion resistance. In this paper, the corrosion behavior of Mg -Al series of AZ80 Mg alloy and Mg -RE series of EW75 Mg alloy exposed to Shenyang industrial atmosphere for one year was studied. The surface and cross-section corrosion morphologies were observed by the Scanning electron microscopy (SEM), and the chemical composition of corrosion products was analyzed by Raman spectroscopy and Energy Dispersive Spectrometer (EDS). The corrosion rate and corrosion mechanism of both Mg alloys were compared. The results show that the atmospheric corrosion behavior of AZ80 and EW75 Mg alloys is dominated under the interaction of pollutants (S, Cl and dust), meteorological factors (relative humidity, temperature, and rainfall) together with the microstructure of Mg substrate (second phases, alloying elemental distribution). The corrosion of AZ80 Mg alloy starts from the central area of alpha-Mg matrix where shows a low Al solid solution, and then propagates along the depth direction of beta phases to form pitting corrosion. For EW75 Mg alloy, the dendritic phases and alpha-Mg matrix are both corroded to exhibit uniform corrosion status due to the weak micro -galvanic corrosion effect.
关键词	Atmospheric corrosion Microgalvanic effect Second phases Meteorological factors Pollutants Mg alloys
资助者	National Natural Science Foundation of China ; Shi Changxu Innovation Center for Advanced Materials ; National R&D Infrastructure and Facility Development Program of China
DOI	10.1016/j.mtcomm.2024.108263
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52171086] ; Shi Changxu Innovation Center for Advanced Materials ; National R&D Infrastructure and Facility Development Program of China[2005DKA10400-15-Z04]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001177562300001
出版者	ELSEVIER
引用统计	被引频次：11[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/321006/184970
专题	中国科学院金属研究所
通讯作者	Song, Yingwei
作者单位	1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Shenyang Univ Technol, Sch Environm & Chem Engn, Shenyang 110870, Peoples R China
推荐引用方式 GB/T 7714	Song, Yingwei,Dai, Jiaming,Sun, Shuo. A comparative study on the corrosion behavior of AZ80 and EW75 Mg alloys in industrial atmospheric environment[J]. MATERIALS TODAY COMMUNICATIONS,2024,38:12.
APA	Song, Yingwei,Dai, Jiaming,&Sun, Shuo.(2024).A comparative study on the corrosion behavior of AZ80 and EW75 Mg alloys in industrial atmospheric environment.MATERIALS TODAY COMMUNICATIONS,38,12.
MLA	Song, Yingwei,et al."A comparative study on the corrosion behavior of AZ80 and EW75 Mg alloys in industrial atmospheric environment".MATERIALS TODAY COMMUNICATIONS 38(2024):12.