Q195型冷轧板表面锆化膜的耐腐蚀性能  

Corrosion resistance of zirconium films on Q195 cold rolled steel surface

作　　者：樊洵 张宏[1] 王耀祖[1] 曲丰作[1] 徐同宽[1] 王大鸷[1] 张绍印[1] 

机构地区：[1]大连工业大学轻工与化学工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2016年第3期203-206,共4页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅科学研究项目(L2011279);辽宁省自然科学基金资助项目(201202012);住房和城乡建设部科学技术计划项目(2014-K4-034)

摘　　要：采用锆化工艺在Q195型冷轧板表面制成锆化膜,用电镜、能谱、交流阻抗技术、极化曲线方法确定和检测了Q195型冷轧板上锆化膜的成分和耐腐蚀性能;通过中性盐雾实验对锆化工艺和磷化工艺进行了比较。结果表明,Q195型冷轧板表面有一层薄膜形成,这层膜主要由Zr、C、O组成;在锆化成膜时间为3min、锆化液pH为4.6时,Q195型冷轧板表面形成的锆化膜具有最佳耐腐蚀性;经过锆化工艺和磷化工艺处理的冷轧板,进行400h中性盐雾实验测试结果相似,均达到合格标准。Zirconium film was deposited on the surface of Q195 cold-rolled steel （CRS） and its composition and corrosion resistance were investigated by scanning electron microscopy, energy dispersive spectrometer, electrochemical impedance spectroscopy （EIS） and polarization curve. The zirconium process was compared with the phosphating process by neutral salt spray test. The results showed that the zirconium film was covered with the thin film composed of Zr, C, O. The film showed the best corrosion resistance when conversion time was 3 min and pH was 4.6. The salt spray test showed that cold-rolled steel treated by both zirconium process and phosphating process could meet the industry standard.

关 键 词：耐腐蚀 冷轧板 锆 交流阻抗 

分 类 号：TG178[金属学及工艺—金属表面处理]