Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy

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	Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy
	X. F. Cui; Q. F. Li; Y. Li; F. H. Wang; G. Jin; M. H. Ding
	2008
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	255 期号:5 页码:2098-2103
摘要	In this paper, a new innoxious and pollution-free chemical protective coating for magnesium alloys, phytic acid conversion coating, was prepared. The conversion coatings are found to have high cover ratio and no cracks are found by atomic force microscopes (AFM) and scanning electronmicroscopy (SEM). The main elements of the conversion coatings are Mg, Al, O, P and C by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). The chemical state of the elements in the coatings was also investigated by Fourier transform infrared spectroscopy (FTIR). AES depth pro. le analysis suggests that the thickness of the conversion coating is about 340 nm. The corrosion resistance of the coatings was evaluated by polarization curves. The results indicate that the corrosion resistance for the conversion coated AZ91D magnesium alloys in 3.5% NaCl solution increases markedly. The mechanisms of corrosion resistance and coatings formation are also discussed. (C) 2008 Elsevier B. V. All rights reserved.
部门归属	[cui, xiufang; li, qingfen; jin, guo; ding, minghui] harbin engn univ, sch mat sci & chem engn, harbin 150001, peoples r china. [cui, xiufang; li, ying; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;jin, g (reprint author), harbin engn univ, sch mat sci & chem engn, harbin 150001, peoples r china;jg97721@yahoo.com.cn
关键词	Phytic Acid Conversion Coatings Microstructure Corrosion Chromium Surface Mg Mechanism Behavior Growth Copper
URL	查看原文
WOS记录号	WOS:000261274100074
引用统计	被引频次：182[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/321006/32701
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. F. Cui,Q. F. Li,Y. Li,et al. Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy[J]. Applied Surface Science,2008,255(5):2098-2103.
APA	X. F. Cui,Q. F. Li,Y. Li,F. H. Wang,G. Jin,&M. H. Ding.(2008).Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy.Applied Surface Science,255(5),2098-2103.
MLA	X. F. Cui,et al."Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy".Applied Surface Science 255.5(2008):2098-2103.