不锈钢材料磷酸盐氧化处理及溶胶-凝胶膜层研究

通过试验在不锈钢材料表面得到了磷酸盐氧化膜层以及磷化膜上的溶胶-凝胶膜层,研究了促进剂的加入对磷化膜层的影响,并通过盐雾试验、湿热试验、盐水浸泡试验、阳极极化曲线等评定了磷化膜和溶胶-凝胶膜层的耐腐蚀性能,通过拉伸试验研究了磷化膜对力学性能的影响.结果表明,磷化后的不锈钢材料有较好的耐腐蚀能力,促进剂的加入使其耐腐蚀性能进一步提高,而且其力学性能不受影响;在磷化膜上刷涂溶胶-凝胶膜层后,其耐腐蚀性能得到了进一步提高.

Study of Stainless Steel''''s Phosphate Oxidation Disposaland Advanced Film Prepared by Sol-gel Method

The phosphate oxidation film was obtained on the surface of stainless steel, subsequently the sol-gel film was produced, and the effect of accelerant to the film was researched. The anti-corrosion performance of the film was assessed through salt-spray test, damp heat test, brine marinating test and anode polarization curve, and the effect on mechanical property was studied through drawing-extending test. The results show that the stainless steel material has good anti-corrosion performance after phosphate oxidation, and accelerant improved its anti-corrosion performance, meanwhile its mechanical property is not affected, the sol-gel treatment following greatly enhances its corrosion performance.