Organic-magnesium complex conversion coating on AZ91D magnesium alloy

来源期刊：中国有色金属学报(英文版)2010年增刊第2期

论文作者：陈晓明 李光玉 连建设

文章页码：643 - 647

Key words：chromium-free conversion coating; organic compound; corrosion; XPS; AZ91D magnesium alloy

Abstract: An organic-magnesium complex conversion (OMCC) coating on AZ91D magnesium alloy was obtained by treating in a solution containing organic compounds. SEM, FESEM and XPS were used to examine the surface morphology, thickness and structure of the conversion coatings. The results show that the continuous and uniform conversion coating is deposited on AZ91D alloy and the main component of the coatings is organic compound containing benzene ring, which forms a chemical bond with magnesium. The polarization measurement and salt spray test show that the corrosion resistance of the conversion coating is much higher than that of traditional chromate conversion coating.

基金信息：the National Natural Science Foundation of China
the 2007 Science and Technology Support Plan of Changchun City, China