STUDIES OF SILICATE ANTICORROSIVE FILM ON ZINC PLATE SURFACE
镀锌层表面硅酸盐防腐膜的研究

The anticorrosive ability of a silicate passivation film formed on the zincplate surface was assessed by salt spray and electrochemical corrosion tests. The results of XPS analyses showed that Zn exists as ZnS in the surface layer of the film, while as ZnO in the internal layer of the film. The relative contents in atomic percent (A.C.%) of the film obtained from the constant elemental composition region of the AES profile curves were O 59.2, Zn 5.9, Si 19.1, N 2.7, S 4.2, P 3.6, C 5.3.