Improvement of anticorrosion and adhesion to magnesium alloy by phosphate coating formed at room temperature

作     者：牛丽媛 林继兴 李勇 史子木 徐临超 

作者机构：Advanced Material Research and Development CentreZhejiang Industry and Trade Polytechnic 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2010年第20卷第7期

页      面：1356-1360页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Projects(Y20090108 G20080115)supported by Education Department of Zhejiang and Technology Department of Wenzhou China 

主　　题：anticorrosion adhesion magnesium alloy paint phosphate coating 

摘      要：A new surface protection process was developed to magnesium alloy against corrosion in aggressive ***,a phosphate coating was formed on rinsed magnesium ***,powder painting was carried out on the phosphated magnesium *** morphologies and phase compositions of the phosphate coating were investigated by X-ray diffraction(XRD) and scanning electron microscope(SEM) .The results show that the phosphate coatings formed in bath containing earth additives at room temperature have dense and fine *** phosphate coating provides excellent paint adhesion to the magnesium alloy. Salt spray tests indicate that the corrosion resistance of the phosphate coating plus paint could meet the demand of magnesium alloy automobile components in aggressive environments.