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	Corrosion performance of plasma electrolytic oxidized AZ31 magnesium alloy in silicate solutions with different additives
	Chen, Huan ; Lv, GuoHua ; Zhang, GuLing ; Pang, Hua ; Wang, XingQuan ; Lee, HeonJu ; Yang, SiZe ; Yang SZ(杨思泽)
	2010-12-25
关键词	MICRO-ARC OXIDATION COATINGS AZ91D RESISTANCE FLUORIDE GROWTH
英文摘要	Conference Name:7th Asian-European International Conference on Plasma Surface Engineering. Conference Address: Busan, SOUTH KOREA. Time:SEP 20-25, 2009.; In this work, plasma electrolytic oxidation coatings were produced on AZ31 magnesium alloy. The electrolytes used were mainly composed of silicate, silicate with addition of phosphate or fluoride, respectively. Scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), and potentiodynamic polarization tests were carried out to investigate the microstructure, element composition, phase composition and corrosion resistance of the coatings. The results showed that the coating formed in silicate electrolyte was mainly composed of MgO. Mg(2)SiO(4) and had a dense structure and low thickness. After the addition of fluoride, MgF(2) was formed and both the coating thickness and corrosion resistance were increased. The addition of phosphate also quickened the film growth rate, but the corrosion resistance of the coating was reduced instead due to the loose and porous microstructure. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
语种	英语
出处	http://dx.doi.org/10.1016/j.surfcoat.2010.03.032
出版者	SURF COAT TECH
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/85970]
专题	物理技术－会议论文
推荐引用方式 GB/T 7714	Chen, Huan,Lv, GuoHua,Zhang, GuLing,et al. Corrosion performance of plasma electrolytic oxidized AZ31 magnesium alloy in silicate solutions with different additives. 2010-12-25.

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