表面技术Issue(6)：53-58,6.
硅烷无铬钝化膜的耐腐蚀性能及成分探究
Study on Corrosion Resistance and Composition of Silane Chromium-free Passivation Film
冯瑞沁 1衣守志 1董世文 2闫婷婷 1焦斌1
作者信息
- 1. 天津科技大学 材料科学与化学工程学院，天津300457
- 2. 甘肃酒钢宏兴钢铁股份有限公司，甘肃 嘉峪关735100
- 折叠
摘要
Abstract
ABSTRACT:Objective To study the microstructure and film-forming mechanism of chromium-free passivation film. Methods The corrosion resistance property of passivation film was determined by electrochemical tests. The relationship between the smoothness of the passivation film and the corrosion resistant properties was evaluated by SEM analysis. The element and constitution of passi-vation film were analyzed by XRD, EDS and XPS tests. Results After passivating treatment of the galvanized sheet, the passivation film could restrain the anodic reaction of zinc layer and decrease the corrosion rate. There was no direct relationship between the smoothness of the passivation film and the corrosion resistant properties as shown by SEM analysis. The element and composition of passivation film could not be tested by XRD but could be analyzed by EDS and XPS. The passivation film mainly contained zinc, carbon, oxygen, nitrogen, silicon etc. Conclusions The organic macromolecules formed the main frame in which SiO2 and silicate were absorbed. The unique combination formed a dense passivation film which could restrain the anodic reaction of zinc layer.关键词
无铬钝化膜/镀锌板/微观形貌/电化学Key words
chrome-free passivating film/galvanized sheet/microstructure/electrochemical分类
矿业与冶金引用本文复制引用
冯瑞沁,衣守志,董世文,闫婷婷,焦斌..硅烷无铬钝化膜的耐腐蚀性能及成分探究[J].表面技术,2014,(6):53-58,6.
