轴承钢表面硫化层与含FeS微粒润滑油的交互作用  

Effect of oil containing FeS particles and sulphurized layer on tribological behavior of a bearing steel

作　　者：刘沅东[1] 王成彪[2] 袁静静[2] 刘家浚[3] 

机构地区：[1]中国地质大学工程技术学院,北京100083 [2]中国矿业大学材料系,北京100084 [3]清华大学机械工程系,北京100084

出　　处：《材料热处理学报》2010年第6期144-149,共6页Transactions of Materials and Heat Treatment

摘　　要：为了改善轴承钢渗硫层在油润滑条件下的摩擦学性能,将FeS粉末作为添加剂添加到润滑油中使用,在球-盘摩擦磨损试验机上考察了FeS微粒与表面硫化层的复合作用。研究表明:渗硫盘与润滑油中的FeS微粒可以取得很好的复合效果。在磨损过程中FeS微粒可以不断被吸附到表面从而有效地补充渗硫层的损失,增强了渗硫层在较苛刻工况下抵抗磨损的能力。在合适的添加浓度下,使用粒度较小的FeS复合作用更为明显。In order to improve the friction properties of sulphurized layer on GCr15 bearing steel under oil lubrication,the new lubrication way of using FeS particles as oil additive was adopted.The synergistic effect of sulphurized layer and FeS particles in oil were examined by friction and wearing test on a ball-on-disc testing machine.The results show that the synergistic effect of FeS particles and sulphurized layer presents good friction performances for the sulphurized GCr15 bearing steel.FeS particles are absorbed to the wearing surface to supplement the loss of sulphurized layer in the process of wearing.The better effect by using FeS with smaller particle size as additive in lubricating-oil can be expected and the concentration of FeS particles in the oil is optimized based on experiment.

关 键 词：低温离子渗硫 摩擦磨损 FES 润滑油添加剂 

分 类 号：TG156.8[金属学及工艺—热处理]