Corrosion Behavior of Anodized AZ91D Magnesium Alloy in NaCl Aqueous Solution

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	Corrosion Behavior of Anodized AZ91D Magnesium Alloy in NaCl Aqueous Solution
	L. J. Zhang; Z. Zhang; J. Q. Zhang
	2008
发表期刊	Acta Physico-Chimica Sinica
ISSN	1000-6818
卷号	24 期号:10 页码:1831-1838
摘要	The corrosion behavior of anodized AZ91D magnesium alloy in neutral 1% (w) NaCl aqueous solution was investigated by salt spray test, polarization Curve, electrochemical impedance spectroscopy (E-IS), electrochemical noise (EN) and scanning electron microscope (SEM). The results showed that the corrosion behavior of Mg alloy presented characteristic changes due to anodization. For example, the unsealed anodic film Could be sustained in 5% NaCl salt spray beyond 200 h, E-corr of anodized magnesium alloy shifted up and the inductive period for pitting corrosion was obviously prolonged, and the impedance modules in high frequency of anodized alloy were several thousand times those of unanodized alloy. All these proved that anodization process made the alloy gain excellent property of anti-corrosion. The evolution of fractal dimension (D-r) was first utilized to depict the corrosion process of anodized AZ91D magnesium alloy and shown as rapid increasing in the initial, fluctuating in the medium and decreasing in the last. This evolution was related with the three different corrosion stages of anodized AZ91D magnesium alloy in 1% NaCl solution.
部门归属	[zhang li-jun; zhang zhao; zhang jian-qing] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [zhang jian-qing] chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china.;zhang, z (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;eaglezzy@zju.edu.cn
关键词	Az91d Magnesium Alloy Anodization En Eis Fractal Dimension Mg-al Alloys Electrochemical Noise Impedance Spectroscopy Atmospheric Corrosion Sodium-chloride Pure Al Dimension Coatings
URL	查看原文
WOS记录号	WOS:000260347300016
引用统计	被引频次：10[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/321006/33327
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. J. Zhang,Z. Zhang,J. Q. Zhang. Corrosion Behavior of Anodized AZ91D Magnesium Alloy in NaCl Aqueous Solution[J]. Acta Physico-Chimica Sinica,2008,24(10):1831-1838.
APA	L. J. Zhang,Z. Zhang,&J. Q. Zhang.(2008).Corrosion Behavior of Anodized AZ91D Magnesium Alloy in NaCl Aqueous Solution.Acta Physico-Chimica Sinica,24(10),1831-1838.
MLA	L. J. Zhang,et al."Corrosion Behavior of Anodized AZ91D Magnesium Alloy in NaCl Aqueous Solution".Acta Physico-Chimica Sinica 24.10(2008):1831-1838.