Investigation of microcracks on conversion film of AZ80 Mg alloy

doi:10.1080/02670844.2018.1507292

CORC > 金属研究所 > 中国科学院金属研究所

	Investigation of microcracks on conversion film of AZ80 Mg alloy
	Song, Yingwei; Xu, Zubin; Dong, Kaihui; Shan, Dayong; Han, En-Hou
刊名	SURFACE ENGINEERING
	2019-06-03
卷号	35 期号:6 页码:527-535
关键词	Microcracks conversion film SEM vacuuming drying
ISSN号	0267-0844
DOI	10.1080/02670844.2018.1507292
通讯作者	Song, Yingwei(ywsong@imr.ac.cn)
英文摘要	Chemical conversion films are widely used to improve the corrosion resistance of Mg alloys. However, abundant microcracks can be found on the surface of conversion film using scanning electron microscopy (SEM) observation. The phosphate conversion film was dried by three methods in this study, thereafter the formation reasons of microcracks and their effect on the corrosion resistance were investigated using SEM and optical morphology observations, and electrochemical measurements. The results indicate that the conversion film dried at high temperature or vacuuming during SEM measurements can accelerate the formation of microcracks. Especially, the microcracks observed using SEM can be attributed to the effect of vacuuming instead of showing the original status. Corrosive mediums are susceptible to preferentially absorb on the microcracks, further to form localised corrosion. It is better to dry the conversion films at room temperature instead of high temperature during the actual applications.
资助项目	National Key Research and Development Program of China[2016YFB0301105] ; National Natural Science Foundation of China[51671199]
WOS研究方向	Materials Science
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000462849400008
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132666]
专题	金属研究所_中国科学院金属研究所
通讯作者	Song, Yingwei
作者单位	Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Song, Yingwei,Xu, Zubin,Dong, Kaihui,et al. Investigation of microcracks on conversion film of AZ80 Mg alloy[J]. SURFACE ENGINEERING,2019,35(6):527-535.
APA	Song, Yingwei,Xu, Zubin,Dong, Kaihui,Shan, Dayong,&Han, En-Hou.(2019).Investigation of microcracks on conversion film of AZ80 Mg alloy.SURFACE ENGINEERING,35(6),527-535.
MLA	Song, Yingwei,et al."Investigation of microcracks on conversion film of AZ80 Mg alloy".SURFACE ENGINEERING 35.6(2019):527-535.