Deposition mechanism of cathodic electrophoresis coating on Mg alloys: Effects of Mg substrates on deposition process

doi:10.1016/j.porgcoat.2023.108103

IMR OpenIR

	Deposition mechanism of cathodic electrophoresis coating on Mg alloys: Effects of Mg substrates on deposition process
	Yang, Jiayu 1,2; Dong, Kaihui 1,2; Song, Yingwei 1,2; Cheng, Xiaoyu 3; Dong, Qijuan 4; Han, En-Hou 1
通讯作者	Dong, Kaihui(khdong@imr.ac.cn) ; Song, Yingwei(ywsong@imr.ac.cn)
	2024-02-01
发表期刊	PROGRESS IN ORGANIC COATINGS
ISSN	0300-9440
卷号	187 页码:11
摘要	Cathodic electrophoresis is an ideal surface treatment technology for Mg alloys, but the effect of Mg substrates on the electrophoresis process lacks sufficient research. Thus, the electrophoretic painting (EP) coatings were prepared on pure Mg, AZ31 and AZ80 Mg alloys, and the effect of Mg substrates on the properties and deposition process of the EP coatings was investigated by current-time (I -t) curves, contact angle, and electrochemical measurements. The results indicate that the surface energy of Mg substrates greatly affects the physical adsorption of EP particles, and the AZ80 with the highest surface energy adsorbs the most paint particles in the "electroless deposition" stage. The effect of "electrodeless deposition" enhances the differences of microstructure on the material surface, affecting the value of the instantaneous current for the initial electrophoretic deposition, with very little effect on the subsequent electrophoretic deposition. And AZ31 exhibits the highest cathodic hydrogen evolution rate during electrophoresis process, resulting in the largest EP coating thickness, but with the most defects.
关键词	Mg substrates Cathodic electrophoresis Formation mechanism Electroless deposition Surface energy Electrophoretic painting coating
资助者	Bintech-IMR RD Program ; SPMI-IMR Scientific and Technological Innoation Program
DOI	10.1016/j.porgcoat.2023.108103
收录类别	SCI
语种	英语
资助项目	Bintech-IMR RD Program[GYY-JSBU-2022-005] ; SPMI-IMR Scientific and Technological Innoation Program[JJ2022072]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Applied ; Materials Science, Coatings & Films
WOS记录号	WOS:001130160600001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：6[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/321006/183138
专题	中国科学院金属研究所
通讯作者	Dong, Kaihui; Song, Yingwei
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Shanghai Spaceflight Precis Machinery Inst, Shanghai 201600, Peoples R China 4.Binzhou Inst Technol, Shandong Key Lab Adv Aluminum Mat & Technol, Binzhou 256600, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jiayu,Dong, Kaihui,Song, Yingwei,et al. Deposition mechanism of cathodic electrophoresis coating on Mg alloys: Effects of Mg substrates on deposition process[J]. PROGRESS IN ORGANIC COATINGS,2024,187:11.
APA	Yang, Jiayu,Dong, Kaihui,Song, Yingwei,Cheng, Xiaoyu,Dong, Qijuan,&Han, En-Hou.(2024).Deposition mechanism of cathodic electrophoresis coating on Mg alloys: Effects of Mg substrates on deposition process.PROGRESS IN ORGANIC COATINGS,187,11.
MLA	Yang, Jiayu,et al."Deposition mechanism of cathodic electrophoresis coating on Mg alloys: Effects of Mg substrates on deposition process".PROGRESS IN ORGANIC COATINGS 187(2024):11.