表面技术2017，Vol.46Issue(8)：221-225,5.DOI:10.16490/j.cnki.issn.1001-3660.2017.08.036
工艺参数对38MnVS钢锰系磷化膜表面形貌和耐蚀性的影响
Effects of Process Parameters on Morphology and Corrosion Resistance of Manganese Phosphating Film on 38MnVS Steel
摘要
Abstract
The work aims to obtain optimum process parameters of manganese phosphating film on 38MnVS steel by studying influence of phosphating temperature and time on morphology,film thickness and corrosion resistance of 38MnVS steel.Manganese phosphating film was prepared on the surface of 38MnVS provided with different phosphating temperature and time by controlling single-factor variables.Morphology,film thickness and corrosion resistance of 38MnVS steel phosphating film were analyzed using scanning electron microscope (SEM),thickness gauge and performing bronze sulfate pitting test.The phosphating film was heterogeneous nucleation and first formed on scratches and grain boundaries.As phosphating time prolonged,grains of the phosphating film covered the substrate surface quickly,and both film thickness and corrosion resistance increased continuously.Performance of the phosphating film changed slightly when phosphating time exceeded 15 min.At the phosphating temperature of below 75 ℃,growth of the film was inhibited,the film failed to cover the substrate,and the film thickness and corrosion resistance were low.As the phosphating temperature rose,the grains grew continuously,thickness and corrosion resistance increased rapidly.At the phosphating temperature of over 95 ℃,performance of the film increased slowly.The optimum phosphating process of 38MnVS steel is 85 ℃ and 15 min.关键词
38MnVS钢/锰系磷化膜/磷化温度/磷化时间/表面形貌/耐蚀性/膜厚Key words
38MnVS steel/manganese phosphating film/phosphating temperature/phosphating time/surface morphology/corrosion resistance/film thickness分类
矿业与冶金引用本文复制引用
马冬威,史秋月,袁国民,罗成,王敏,胡志华..工艺参数对38MnVS钢锰系磷化膜表面形貌和耐蚀性的影响[J].表面技术,2017,46(8):221-225,5.基金项目
湖北省高等学校优秀中青年科技创新团队计划项目(T201518) （T201518）
湖北省大学生创新训练计划项目(201510525005) Supported by the Outsatanding Young Scientific and Technological Innovation Team of Colleges and Universities in Hubei Province (T201518),the Innovative Training Program for College Students in Hubei Province (201510525005) （201510525005）
