Design and Evaluation the Anti-Wear Property of Inorganic Fullerene Tungsten Disulfide as Additive in PAO6 Oil

Inorganic fullerene-like tungsten disulfide particles have been proved to good anti-friction and anti-wear properties as lubricating materials. As far we know, however, when it is used a lubricant additive, its behavior action mechanism in the friction process are rarely studied. Herein, IF–WS2 were synthesized by Chemical Vapor Deposition (CVD) method. The effect of particle concentrations PAO6 oil on tribological behaviors was investigated with four-ball wear machine at both 75 100 °C. Additionally, analyzed morphology composition nanomaterials worn surfaces Scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM) X-ray photoelectron spectroscopy (XPS). actual working conditions studied testing machine. experimental results show that compared original oil, dispersion 0.25 wt% showed best performance terms coefficient friction, scar diameter mass, which significantly reduced 27%, 43% 87%, respectively. At same time, found accumulated depressions fill scratches, adsorption films chemical films, including FeS2, WS2 WO3, formed avoid direct contact among pairs more effectively, resulting improved performances. addition effectively delayed rise temperature. In addition, dispersant span 80 can improve stability PAO6. This work provides us for understanding effective lubrication detail having new acknowledge comprehensive IF–WS2/PAO6 oil.