IMR OpenIR
New sealing treatment of microarc oxidation coating
Y. Q. Wang; Y. Z. Deng; Y. W. Shao; F. H. Wang
2014
Source PublicationSurface Engineering
ISSN0267-0844
Volume30Issue:1Pages:31-35
AbstractSilanisation 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.
description.department[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
KeywordMagnesium Oxidation Coating Sealing Silanisation Corrosion Plasma Electrolytic Oxidation Az31 Magnesium Alloy Corrosion-resistance Aluminum-alloy Mg Alloys Protection Electrodeposition Performance Behavior Nanoparticles
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72926
Collection中国科学院金属研究所
Recommended Citation
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.
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