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	Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy
	Duan, GQ; Yang, LX; Liao, SJ; Zhang, CY; Lu, XP; Yang, YE; Zhang, B; Wei, Y; Zhang, T; Yu, BX
刊名	CORROSION SCIENCE
	2018-05-01
卷号	135页码:197-206
关键词	Plasma Electrolytic Oxidation Enhanced Catalytic-activity Phosphate Ionic Liquid Mg-alloy Formation Mechanism Hydrogen Evolution Az31 Composite Protection Films
ISSN号	0010-938X
英文摘要	The designing idea for the chemical conversion coating with high corrosion resistance (CR) and low electrical contact resistance (ECR) on AZ91D Mg alloy was presented. The main characteristics of the conversion bath include acidic solution, strong oxidizing agent, proper pH value and cation concentration (determined by thermodynamic calculation). The desired performances are attributed to the unique microstructure of conversion coating, i.e., beta phase protruded from the surface and covered by a thinner passive film about 30 nm, contributing to low ECR, meanwhile, a thicker coating of 200-300 nm without cracks was deposited on alpha-phase, providing a good corrosion resistance.; The designing idea for the chemical conversion coating with high corrosion resistance (CR) and low electrical contact resistance (ECR) on AZ91D Mg alloy was presented. The main characteristics of the conversion bath include acidic solution, strong oxidizing agent, proper pH value and cation concentration (determined by thermodynamic calculation). The desired performances are attributed to the unique microstructure of conversion coating, i.e., beta phase protruded from the surface and covered by a thinner passive film about 30 nm, contributing to low ECR, meanwhile, a thicker coating of 200-300 nm without cracks was deposited on alpha-phase, providing a good corrosion resistance.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	Natural Science Foundation of China [51531007, 51771050, U1737102]; National program for the Young Top-notch Professionals; CAST [2017QNRC001]; Program of Hundred Talents of Chinese Academy of Sciences; Foundation of Young Scholars in HLJIT [2014QJ12]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79337]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, YE; Zhang, T (reprint author), Northeastern Univ, Shenyang Natl Lab Mat Sci, Corros & Protect Div, 3-11 Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Duan, GQ,Yang, LX,Liao, SJ,et al. Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy[J]. CORROSION SCIENCE,2018,135:197-206.
APA	Duan, GQ.,Yang, LX.,Liao, SJ.,Zhang, CY.,Lu, XP.,...&Zhang, T .(2018).Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy.CORROSION SCIENCE,135,197-206.
MLA	Duan, GQ,et al."Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy".CORROSION SCIENCE 135(2018):197-206.

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