Study on the environmentally friendly anodizing of AZ91D magnesium alloy

IMR OpenIR

	Study on the environmentally friendly anodizing of AZ91D magnesium alloy
	Y. J. Zhang; C. W. Yan; F. H. Wang; H. Y. Lou; C. N. Cao
	2002
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	161 期号:1 页码:36-43
摘要	A new anodizing process, based on an environmentally friendly electrolyte solution that contains none of chromate, phosphate or fluoride but can enhance the corrosion protection of magnesium alloy significantly, is investigated. Anodizing behaviors of magnesium and its alloys are influenced by many factors, including the constituents and concentrations of electrolyte solution, the nature of basis metal as well as applied current density or voltage, treatment time and solution temperature, etc. Therein, the electrolyte solution plays a determinant role. Applied constant current can ensure that anodic films grow at an almost uniform rate. Higher current density and lower solution temperature benefit the film growth. Higher voltage indicates thicker film when constant current is provided. However, the voltage does not always increase linearly with increasing film thickness even under the condition of constant current density. The new anodic film, having a number of pores that are relatively uniform in size as well as distribution on a microstructure scale and do not tranverse the entire film, forms a relatively intact and compact barrier layer. By comparison with the films produced by two available classic processes, the new film can provide more effective corrosion protection to substrate. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;zhang, yj (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china
关键词	Magnesium Alloy Anodizing Film Corrosion Protection Electrolyte Solution Mg-al Alloys Koh-aluminate Solutions Rapid Solidification Pure Magnesium Corrosion Behavior Sparking
URL	查看原文
WOS记录号	WOS:000178276100005
引用统计	被引频次：201[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/321006/36554
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Zhang,C. W. Yan,F. H. Wang,et al. Study on the environmentally friendly anodizing of AZ91D magnesium alloy[J]. Surface & Coatings Technology,2002,161(1):36-43.
APA	Y. J. Zhang,C. W. Yan,F. H. Wang,H. Y. Lou,&C. N. Cao.(2002).Study on the environmentally friendly anodizing of AZ91D magnesium alloy.Surface & Coatings Technology,161(1),36-43.
MLA	Y. J. Zhang,et al."Study on the environmentally friendly anodizing of AZ91D magnesium alloy".Surface & Coatings Technology 161.1(2002):36-43.