Mo/MoS_(2)-Pb-PbS复合薄膜的真空摩擦学行为研究  

Tribological Properties of Mo/MoS_(2)-Pb-PbS Composite Films in Vacuum Environments

作　　者：韩翠红 马国政[4] 李国禄 石佳东[1] 王海斗 HAN Cuihong;MA Guozheng;LI Guolu;SHI Jiadong;WANG Haidou(School of Materials Science and Engineering,Hebei University of Technology,Tianjin,300401;School of Mechanical Engineering,Tianjin University of Technology and Education,Tianjin,300222;National Engineering Research Center for Remanufacturing,Army Academy of Armored Forces,Beijing,100073;National Key Laboratory for Remanufacturing,Army Academy of Armored Forces,Beijing,100072)

机构地区：[1]河北工业大学材料科学与工程学院,天津300401 [2]天津职业技术师范大学机械工程学院,天津300222 [3]陆军装甲兵学院机械产品再制造国家工程研究中心,北京100073 [4]陆军装甲兵学院装备再制造技术国防科技重点实验室,北京100072

出　　处：《中国机械工程》2022年第12期1477-1483,共7页China Mechanical Engineering

基　　金：国家自然科学基金(52105200,52122508,52130509)。

摘　　要：多组元复合是提高润滑薄膜苛刻工况下服役性能的有效方法。采用“射频磁控溅射+低温离子渗硫”复合工艺,在9Cr18轴承钢表面制备了Mo/MoS_(2)-Pb-PbS复合固体润滑薄膜;利用自主研制的MSTS-1型多功能真空摩擦磨损试验机研究了8×10^(-5) Pa真空条件下法向载荷和滑动速率对Mo/MoS_(2)-Pb-PbS复合薄膜摩擦学性能的影响。结果表明,在所设定的5种滑动速率下,Mo/MoS_(2)-Pb-PbS薄膜的摩擦因数随滑动速率的增大而缓慢减小,磨损率经一定周次的跑合后逐渐趋于稳定;在不同的法向载荷下,随着载荷的增大,薄膜的摩擦因数呈近似抛物线增大,变化范围在0.03~0.24之间;薄膜表面的磨痕宽度同样随着载荷的增大而增大。The performance of lubricating films under harsh working conditions might be improved by multicomponent compounding.Composite process of“radio frequency magnetron sputtering+low-temperature ion sulfide”was adopted to deposit Mo/MoS_(2)-Pb-PbS composite films on 9Cr18 bearing steels.Tribological properties of Mo/MoS_(2)-Pb-PbS composite films were evaluated by MSTS-1 vacuum tribometer under different normal loads and sliding speeds at 8×10^(-5) Pa.The friction coefficient of the film decreases slowly with the increase of sliding rate,and the wear rate of the film gradually stabilized after running-in stage.With the increase of normal load,the friction coefficient of the film increases approximately parabolically,and the variation range is at the range of 0.03~0.24,and the wear scar width of the film surfaces also increases with the increase of load correspondingly.

关 键 词：Mo/MoS_(2)-Pb-PbS 复合薄膜 真空 磨损 润滑 

分 类 号：TG13[一般工业技术—材料科学与工程]