Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF6

doi:10.1016/j.surfcoat.2011.07.054

IMR OpenIR

	Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF6
	Liu, Feng; Shan, Dayong; Song, Yingwei; Han, En-Hou
通讯作者	Shan, Dayong(dyshan@imr.ac.cn)
	2011-10-25
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	206 期号:2-3 页码:455-463
摘要	A plasma electrolytic oxidation (PEO) coating on AM50 magnesium alloy was obtained in a K2ZrF6-NH4H2PO4-KF-C6H5O7Na3 electrolyte solution. The influence of the electrolytes on the properties of the PEO coating had been investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), roughness determination and electrochemical measurements. The experimental results show that 10 g L-1 K2ZrF6 and the presence of 8 g L-1 NH4H2O4 are beneficial for the passivation effect of the solution on AM50 Mg alloy as well as the compactness of the PEO coating. Many pores with large dimension on the surface of the coating are filled with coating compounds (mainly MgF2), and the characteristics of these pores are influenced by the concentration of KF. The addition of KF and C6H5O7Na3 enhances the growth rate of the coating. The coating shows high corrosion resistance in the presence of 10 g L-1 K2ZrF6 combined with 8 g L-1 NH4H2PO4, 3 g L-1 KF and 5 g L-1 C6H5O7Na3. (C) 2011 Elsevier B.V. All rights reserved.
关键词	PEO coating Magnesium Anodizing Corrosion resistance Electrolytes
资助者	National Project of Scientific and Technical Supporting Programs ; Chinese MOST ; National Natural Science Foundation of China ; National Key Technology RD Program
DOI	10.1016/j.surfcoat.2011.07.054
收录类别	SCI
语种	英语
资助项目	National Project of Scientific and Technical Supporting Programs ; Chinese MOST[2007CB613705] ; National Natural Science Foundation of China[50901082] ; National Key Technology RD Program[2011BAE22B05]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000295386900037
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/103886
专题	中国科学院金属研究所
通讯作者	Shan, Dayong
作者单位	Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Feng,Shan, Dayong,Song, Yingwei,et al. Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF6[J]. SURFACE & COATINGS TECHNOLOGY,2011,206(2-3):455-463.
APA	Liu, Feng,Shan, Dayong,Song, Yingwei,&Han, En-Hou.(2011).Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF6.SURFACE & COATINGS TECHNOLOGY,206(2-3),455-463.
MLA	Liu, Feng,et al."Effect of additives on the properties of plasma electrolytic oxidation coatings formed on AM50 magnesium alloy in electrolytes containing K2ZrF6".SURFACE & COATINGS TECHNOLOGY 206.2-3(2011):455-463.