Characterization of micro-arc oxidation coating post-treated by hydrofluoric acid on biodegradable ZK60 magnesium alloy

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	Characterization of micro-arc oxidation coating post-treated by hydrofluoric acid on biodegradable ZK60 magnesium alloy
	X. Lin; L. L. Tan; P. Wan; X. M. Yu; K. Yang; Z. Q. Hu; Y. D. Li; W. R. Li
	2013
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	232 页码:899-905
摘要	The porous structure of micro-arc oxidation (MAO) coating is bad to the corrosion resistance and the long-term protective ability of the coating on the biodegradable magnesium alloy. In this study, a hydrofluoric acid (HF) treatment was taken on the MAO coated ZK60 magnesium. It was found that the magnesium fluoride (MgF2) became the main phase and the porous structure of MAO coating disappeared after the HF treatment. Moreover, its wear resistance was at the same level with that of the single MAO coating. Although the corrosion resistance of the coating was slightly decreased, the alkalization effect was well controlled after the HF treatment. The immersion test revealed different degradation behaviors for the MAO coated alloy before and after the HF treatment, and the coating showed no hemolytic potential. In conclusion, the HF treatment is promising as a post treatment method for the MAO coating on biodegradable magnesium alloys. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[lin, xiao ; tan, lili ; wan, peng ; yu, xiaoming ; yang, ke ; hu, zhuangqi] chinese acad sci, inst met res, shenyang 110016, peoples r china. [li, yangde ; li, weirong] dongguan eontec co ltd, guangzhou 523662, guangdong, peoples r china. ; tan, ll (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; lltan@imr.ac.cn
关键词	Biodegradable Magnesium Micro-arc Oxidation Fluoride Conversion Plasma Electrolytic Oxidation Zn-ca Alloy Corrosion Behavior Composite Coatings Az31 Alloy Mg Fluoride Degradation Fabrication Resistance
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/321006/72332
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Lin,L. L. Tan,P. Wan,et al. Characterization of micro-arc oxidation coating post-treated by hydrofluoric acid on biodegradable ZK60 magnesium alloy[J]. Surface & Coatings Technology,2013,232:899-905.
APA	X. Lin.,L. L. Tan.,P. Wan.,X. M. Yu.,K. Yang.,...&W. R. Li.(2013).Characterization of micro-arc oxidation coating post-treated by hydrofluoric acid on biodegradable ZK60 magnesium alloy.Surface & Coatings Technology,232,899-905.
MLA	X. Lin,et al."Characterization of micro-arc oxidation coating post-treated by hydrofluoric acid on biodegradable ZK60 magnesium alloy".Surface & Coatings Technology 232(2013):899-905.