Investigation on the Friction-Wear Properties and Tribological Microscopic Mechanism of MoS2 Films
Abstract: MoS2 has been widely used and thoroughly studied as a solid lubricant for a long time, but the re-search on relationship of the structure evolution and frictional mechanism are seldomly reported. In this paper, MoS2 solid lubricating films were prepared on the surface of stainless steel by me-chanical rubbing. Then we used GCr15, Al2O3 and Si3N4 ball as couple pairs to investigate the friction and wear properties on a reciprocation tribo-tester (FMT-R4000), the loads for tests were 5 N and 10 N. Field emission scanning electron microscopy (FE-SEM) and Raman spectroscopy revealed the structure evolution of MoS2 during the course of friction. Three-dimensional surface profiler (MicroXAM-3D) was used to characterize the surface topography of wear tracks. The results indi-cated that the friction coefficient of stainless steel was reduced by 80% (before coating ~0.5 and af-ter coating ~0.1), and the wear volume was reduced by 18%, 35% when the load was 5 N and 10 N, respectively. These excellent properties suggest that mechanical rubbing is an effective method for solid lubricating film preparation. In addition, Raman spectroscopy also confirmed that the layered peeling and interlayer low shear is the main reason to reduce friction and wear.
文章引用: 杨保平 , 薛 勇 , 张 斌 , 强 力 , 梁爱民 (2017) MoS2薄膜摩擦磨损性能及摩擦微观机制研究。 材料科学， 7， 403-412. doi: 10.12677/MS.2017.73054
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