应用SEM、EDX和XPS等分析手段研究了涂油钝化电镀锌钢板表面黑变膜的外观、形貌、组成与结构，并对黑变的形成进行了讨论。结果表明，黑变膜厚度约100nm，它是以ZnO1-x为主，并由ZnO、Zn(OH)2、Cr2O3、CrOOH、SiO2及微量CrO3等物质组成，但膜表层Zn是以Zn0形态存在，膜内层则以非化学计量化合物ZnO1-x形态存在。黑变是镀锌层膜下腐蚀与光的干涉作用所致。
The appearance, morphology, composition and structure of black tarnished film on CrO3-SiO2 passivated electrogalvanized steel sheet were investigated by SEM, EDX and XPS.It was shown that the black tarnished film was composed of ZnO1-8, ZnO, Zn(OH)2, Cr2O3, CrOOH, SiO2 and trace CrO3. Zinc existed as ZnO in the surface layer and as non-stoichimetric compound ZnOl -x in the inner layer of the black tarnished film. The formation mechanism of black tarnished film wasdiscussed comprehensively.
参考文献
| [1] | 卢燕平,金艳明,任玉苓,吴志良.无水洗电镀锌钢板表面黑变现象探讨[J].电镀与涂饰,1999(03):5-10. |
| [2] | [P].日本公开特许公报，平－283382,1989. |
| [3] | 须田新;他 .涂布型クロメ一卜の耐食性にほすシリカの添加效果[J].表面技术,1995,46(05):437. |
| [4] | HashimotoS;Abe M .The Characterization of Electrodeposited Zn-SiO2 Composites Before and After Corrosion Test[J].Corrosion Science,1994,36(12):2132. |
| [5] | 内田幸夫;他 .Zn-A1系合金溶融ぁつを钢板の黑变皮膜[J].铁と钢(日本),1986,72(08):130. |
| [6] | 刘世宏.X射线光电子能谱分析[M].北京:科学出版社,1988 |
| [7] | 须田新;他 .クロメ一ト皮膜の高分子化に及ほシリカの影响[J].表面技术,1995,46(03):65. |
| [8] | 三代泽良明 .涂装前处理としての涂布型クロメ一ト[J].表面技术,1992,43(04):68. |
| [9] | 西村一实;他 .亚铅系めつを钢板の涂膜下腐食の支配要因[J].铁と钢(日本),1986,72(01):104. |
| [10] | 《无机化学》编写组.无机化学[M].北京:人民教育出版社,1978 |
| [11] | 郭永康.光学教程[M].成都:四川大学出版社,1989 |
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