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采用低温离子渗硫技术在 ４５＃和 ＧＣｒ１５钢表面形成一定厚度的渗硫层，采用金相、 ＳＥＭ＋ＥＤＸ、ＸＲＤ等方法分析了渗层结构，采用ＳＲＶ往复式磨损试验机，在液体石蜡润滑条件下对渗层的摩擦学性能进行了研究结果表明：渗硫层结构疏松，表面多孔，其结构为 ＦｅＳ、 ＦｅＳ２硫化物相和基体相的混合物渗硫层有明显的减摩润滑作用，其摩擦系数比相应无渗层表面低５０％．渗层厚度增加，摩擦系数基本不变在轻载条件下，渗层有效作用时间延长，在重载条件下其变化不大在相同试验条件下，ＧＣｒ１５钢表面渗硫层比相应４５＃钢渗层有效作用时间长，摩擦系数略低
The low temperature ionized sulfur infiltration technique was used to form the infiltration layer with a certain thickness on the surface of 45 # and GCr15 steel. The structure of the infiltrated layer was analyzed by metallography, SEM + EDX and XRD. SRV reciprocating wear tester was used. Under liquid paraffin lubrication The tribological properties of the infiltrated layer were studied. The results show that the structure of the infiltrated layer is loose and the surface is porous. The structure of the infiltrated layer is FeS. The microstructure of the infiltrated layer of FeS2 and the matrix phase is obviously antifriction and lubrication. The friction coefficient 50% lower than the corresponding non-permeable surface. Under the same test conditions, the sulphurized layer on the surface of GCr15 steel is better than that of the corresponding 45 # steel under the condition of light load, and the effect time is longer under the condition of light load. Layer effective role for a long time, the friction coefficient is slightly lower