不同钢种离子渗硫层的抗擦伤性能研究

为改善高速钢，模具钢和45钢的抗擦伤性能，采用低温离子渗硫技术在这三种材料表面生成了FeS固体润滑渗硫层，在QP-100球盘式摩擦磨损试验机上对比研究了这三种材料渗硫层在油润滑条件下的抗擦伤及摩擦学性能。利用SEM与XRD观察分析了渗硫层截面，擦伤面形貌及表面相结构，利用AES及XPS分析了擦伤表面元素沿深度的分布及边界润滑膜化合物的价态，研究表明，渗硫后三种材料的抗擦伤及摩擦学性能都有明显改善，其中渗硫高速钢的抗擦伤性最好。其后依次为渗硫模具钢，渗硫45钢，分析认为，不同钢种渗硫层抗擦伤性能的差异主要由基体硬度，组织结构及耐蚀性三方面决定。

Study on Anti-scuffing Properties of Ion Sulfide Layers under Oil Lubrication

In order to improve the anti scuffing properties of high speed steel, die steel and plain carbon steel, low temperature ion sulfuration technology was utilized to process them Sulfide layers, dominated by FeS phase, were produced on the surfaces of the three steels The anti scuffing and tribological properties of the sulfide layers were investigated by a friction and wear tester, QP 100 model, ball plate tester, under oil lubrication SEM equipped with EDX and XRD were employed to analyze the morphologies of cross section and scuffing surfaces of sulfide layers, as well as the surfaces phase structure AES and XPS were used to detect the elements variation with depth and the valence states of boundary lubrication films of scuffing surfaces respectively The results show that the anti scuffing and tribological properties of all sulfuration steels are improved remarkably It can be ranked by the order of high speed steel die steel plain carbon steel according to the extend of improved anti scuffing and tribological properties The differences of properties with different steels are mainly determined in the hardness, microstructure and corrosion resistance of substrate respectively