Microstructure and Corrosion Properties of Bio-Composite Coating Containing Ti Formed on AZ91 Alloy

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	Microstructure and Corrosion Properties of Bio-Composite Coating Containing Ti Formed on AZ91 Alloy
	Wang Yaming 1,2; Wang Fuhui 1,3; Ouyang Jiahu ; Jia Dechang ; Zhou Yu
刊名	RARE METAL MATERIALS AND ENGINEERING
	2009-12-01
卷号	38 页码:739-742
关键词	Mg alloy biocoating microstructure corrosion
ISSN号	1002-185X
通讯作者	Wang Yaming()
英文摘要	The pure Ti layer was presetted on AZ91 surface by cold spraying; consequently the top Ti layer was subjected to the microarc oxidation treatment to enhance the bioactivity. The microstructure of coatings on Mg alloy was examined using SEM, XRD and EDS methods. The corrosion resistance of the A291 alloy with Ti coating in simulated body fluid (SBF) was evaluated by dynamic potential polarizing test. The results show that the presetted Ti layer, with about 100 mu m thickness, is rather rough in the surface. After microarc oxidation treatment, a thin film with rather fine discharging pores was formed on the Ti layer surface. The newly formed film is mainly composed of Ti(2)O(3) phase, also containing a small amount of amorphous component such as Ca and P. The micoarc oxidation treatment is helpful to improve the bioactivity and density of Ti layer. The self-corrosion potential of composite coating containing Ti is increased by about 0.3 V in SBF, which indicates that the corrosion resistance capacity is improved.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000273803000022
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/96532]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang Yaming
作者单位	1.Harbin Engn Univ, Harbin 150001, Peoples R China 2.Harbin Inst Technol, Inst Adv Ceram, Harbin 150001, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang Yaming,Wang Fuhui,Ouyang Jiahu,et al. Microstructure and Corrosion Properties of Bio-Composite Coating Containing Ti Formed on AZ91 Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38:739-742.
APA	Wang Yaming,Wang Fuhui,Ouyang Jiahu,Jia Dechang,&Zhou Yu.(2009).Microstructure and Corrosion Properties of Bio-Composite Coating Containing Ti Formed on AZ91 Alloy.RARE METAL MATERIALS AND ENGINEERING,38,739-742.
MLA	Wang Yaming,et al."Microstructure and Corrosion Properties of Bio-Composite Coating Containing Ti Formed on AZ91 Alloy".RARE METAL MATERIALS AND ENGINEERING 38(2009):739-742.