四川大学学报（自然科学版）2012，Vol.49Issue(5)：1043-1048,6.DOI:10.3969/j.issn.0490-6756.2012.05.019
镀锌层无铬黑色钝化膜成分及其耐蚀性能
Thecomposition and corrpsion resisitance of chromium-free black passivation film on electrodeposited zinc coating
摘要
Abstract
To avoid the environmental pollution and body's harm from the chromium salt, this paper u-ses a new silicate black passivation technology instead of the tradition chromate black passivation to form a thin black passivation film on the zinc coating. The neutral salt spray and the test of electrochemical experiments show that the corrosion resistance of passivation film has been greatly improved. Through SEM and microstructure, it is observed that the surface passivation's quality has been greatly improved. The X-ray photoelectron spectroscopy (XPS) analysis shows that the black passivation film contains Zn, O, N, S, P , Si and other elements, in which silicon exists in the form of colloidal SiO2 and Zn5Si3O7 (OH)2(PO4)2 · 4H2O. There is also a brief analysis of the black passivation film's formation according to the XPS.关键词
无铬钝化/黑色钝化膜/镀锌层/耐蚀性Key words
chromium-free passivation/black passivation film/zinc coating/corrpsion resisitance分类
矿业与冶金引用本文复制引用
范云鹰,施绍队,周荣锋,岑启宏,李孟洋..镀锌层无铬黑色钝化膜成分及其耐蚀性能[J].四川大学学报（自然科学版）,2012,49(5):1043-1048,6.基金项目
云南省自然基金(KKS0200927011) （KKS0200927011）
