涂布无铬钝化剂和防锈油的镀锌铝镁板局部腐蚀原因分析  

Analysis on Localized Corrosion Causes of Galvanized Al⁃Mg Steel Plate Coated with Chromium Free Passivator and Antirust Oil

作　　者：徐闻慧 杨洪刚 吕家舜 金勇 姜效军[2] XU Wen-hui;YANG Hong-gang;LV Jia-shun;JIN Yong;JIANG Xiao-jun(Iron and Steel Research Institute of Ansteel Group,Anshan 114009,China;School of Chemical Engineering,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]鞍钢集团钢铁研究院,辽宁鞍山114009 [2]辽宁科技大学化工学院,辽宁鞍山114051

出　　处：《材料保护》2023年第3期183-188,共6页Materials Protection

基　　金：国家重点研发专项基金(2017YFB0304305)资助。

摘　　要：为探索镀锌铝镁板在涂覆无铬钝化液和防锈油后在运输环境下的腐蚀机理,利用XPS和能谱技术分析了色差区的元素差异;利用原子力显微镜考察了镀锌板无铬钝化膜腐蚀前后的微观结构;利用Raman光谱分析了涂布无铬钝化剂的固化机理及防护过程。研究得出:防锈油组分与钝化膜组分反应影响了涂覆膜的防锈性能;Raman光谱揭示提高固化板温到90℃固化更完全,防锈能力明显增强。In order to explore the corrosion mechanism of galvanized Al⁃Mg steel plate coated with chromium⁃free passive solution and anti⁃rust oil in the transportation environment,XPS and EDS were used to analyze the element differences in the color⁃difference zone.The microstruc⁃ture of chromium⁃free passive film of the galvanized sheet before and after corrosion was investigated by atomic force microscope.Raman spec⁃troscopy was used to analyze the curing mechanism and protection process of coated chromium⁃free passivator.Results showed that the reaction between the components of antirust oil and passive film affected the antirust performance of the coating film.Raman spectrum revealed that the cured plate could be cured more completely by increasing the temperature to 90℃,and the anti⁃rust ability was obviously enhanced.

关 键 词：镀锌铝镁钢板 钝化膜 防锈油原子力显微技术 RAMAN光谱 腐蚀防护 

分 类 号：TG172[金属学及工艺—金属表面处理]