【作者】 李旭晖； 司海娟； 闫森智； 吕冲； 夏道宏；

【Author】 LI Xu-hui1, 2, SI Hai-juan2, YAN Sen-zhi2, LV Chong2, XIA Dao-hong (1.China University of Petroleum, Dongying Shandong 257061, China; 2. Lanzhou Petroleum Machinery Research Institute, Lanzhou Gansu 730050, China)

【机构】 中国石油大学(华东)； 兰州石油机械研究所；

【摘要】 研究了不锈钢表面转化膜耐蚀性能、表面润湿性能及其物理性能,并对其耐蚀性能和表面润湿性能的提高机理进行了探讨。结果表明:不锈钢表面转化膜可以显著提高材料的耐蚀性能和表面润湿性能,且其具有良好的热膨胀性、拉伸性和抗冲击性。表面转化膜处理的最佳工艺条件为:氧化温度75℃,氧化时间8min,蓝色转化膜,电解电流0.20A/dm2,电解时间10min。多功能电子能谱分析结果表明,表面转化膜膜厚远远大于自然钝化膜,且表面Cr、O以及含氧极性基团含量大大增加,从而使得不锈钢表面转化膜具有较好的耐蚀性能与润湿性能。更多还原

【Abstract】 Corrosion resistance, physical properties and surface wettability of stainless steel surface conversion film were studied in details. The results showed that the corrosion resistance and surface wettability of stainless steel treated with the surface conversion film technology increased greatly, and the film have good thermal expansion, tensile and impact performance, The optimum conditions of treatment are: oxidation temperature 75 ℃, oxidation time 8min, blue film, electrolytic current 0.20 A/dm2, electrolytic time 10min. Multifunctional electron spectroscopy analysis revealed that the improvement of corrosion resistance and wettability are due to the increase of the film thickness and Cr、O content on the surface.更多还原