New sealing treatment of microarc oxidation coating

IMR OpenIR

	New sealing treatment of microarc oxidation coating
	Y. Q. Wang; Y. Z. Deng; Y. W. Shao; F. H. Wang
	2014
发表期刊	Surface Engineering
ISSN	0267-0844
卷号	30 期号:1 页码:31-35
摘要	Silanisation treatment was proposed as a new approach for sealing treatment of microarc oxidation (MAO) coating on Mg alloy AZ91D. The morphologies of the Mg alloy surfaces after MAO with or without silanisation sealing treatment were characterised by scanning electron microscopy. The results demonstrated that quite a few structural defects, including microcracks and micropores, could be observed after MAO treatment, while most of them were able to be well sealed after silanisation treatment. Moreover, the corrosion resistance performances of the Mg alloy after surface treatments were evaluated by potentiodynamic polarisation curves and electrochemical impedance spectroscopy. The results showed that the corrosion current density of the AZ91D Mg alloy combining MAO and silanisation treatment was decreased by five orders of magnitude comparing with the untreated blank substrate, which demonstrates sharply increasing anticorrosive performances of the alloy.
部门归属	[wang, y. q. ; deng, y. z. ; shao, y. w. ; wang, f. h.] harbin engn univ, educ minist, key lab superlight mat & surface technol, corros & protect lab, harbin 150001, peoples r china. [wang, f. h.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wang, yq (reprint author), harbin engn univ, educ minist, key lab superlight mat & surface technol, corros & protect lab, harbin 150001, peoples r china. ; qiuorwang@hrbeu.edu.cn
关键词	Magnesium Oxidation Coating Sealing Silanisation Corrosion Plasma Electrolytic Oxidation Az31 Magnesium Alloy Corrosion-resistance Aluminum-alloy Mg Alloys Protection Electrodeposition Performance Behavior Nanoparticles
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72926
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Q. Wang,Y. Z. Deng,Y. W. Shao,et al. New sealing treatment of microarc oxidation coating[J]. Surface Engineering,2014,30(1):31-35.
APA	Y. Q. Wang,Y. Z. Deng,Y. W. Shao,&F. H. Wang.(2014).New sealing treatment of microarc oxidation coating.Surface Engineering,30(1),31-35.
MLA	Y. Q. Wang,et al."New sealing treatment of microarc oxidation coating".Surface Engineering 30.1(2014):31-35.