Environmentally friendly composite film of anodizing and electrodeposition coating having a high corrosion resistance on magnesium alloy AZ91D

被引：11
作者：
Hara, Masaaki [1 ]
Matsuda, Kenji [1 ]
Yamauchi, Wataru [1 ]
Sakaguchi, Masaaki [2 ]
Yoshikata, Toshiyuki [2 ]
Takigawa, Yorinobu [3 ]
Higashi, Kenji [3 ]
机构：
[1] SHIMANO Inc, Sakai, Osaka 5908577, Japan
[2] Okuno Chem Ind Co Ltd, Osaka 5380044, Japan
[3] Osaka Prefecture Univ, Grad Sch Engn, Dept Mat Sci, Sakai, Osaka 5998531, Japan
来源：
MATERIALS TRANSACTIONS | 2007年 / 48卷 / 12期
关键词：
magnesium alloy; anodizing; cationic electrodeposition coating; organic spray coating; corrosion resistance;
D O I：
10.2320/matertrans.MRA2006632
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we compared and examined the corrosion resistance of the magnesium alloy with the composite film of 2 kinds of coating on 3 kinds of surface treated film as the substrate treatment. 3 kinds of surface treated film stands for conventional DOW17 anodized film (DAF), chemical conversion treatment JISA3-type MX3 film (CCF), which contain hexavalent chromium, fluorine and phosphorus compounds, and environmentally friendly silicate anodized film (SAF) containing no hazardous substances and 2 kinds of coating stands for organic coating and electrodeposion coating. As a result of the analysis, we could observe that it was extremely effective for magnesium alloy AZ91D to apply the composite film of environmentally friendly SAF with cationic electrodeposition coatings to obtain superior corrosion resistance to that of the composite film of conventional DAF or CCF with organic spray coating. At the same time we could take an action for the environment countermeasure by using the environmentally friendly SAF with the water base cationic electrodeposition coatings as a countermeasure for VOC (Volatile Organic Compound) regulations.
引用
收藏
页码：3118 / 3125
页数：8
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