Abstract
The synergistic interaction of fibres implanted in grooves can enhance tribological behaviour of a contact interface. By comparing the tribological performance characteristics of structures with smooth surfaces (SSs) and grooved surfaces (GSs) and two composite textures with different flocking densities (FS1 and FS2), the friction mechanism of the sliding interface is revealed. The results indicate a 27.51 % reduction in the coefficient of friction (COF) of FS2 sample compared to that of SS sample. Due to its buffering and lubricating effects, the synergistic interaction between the grooves and fibres effectively reduces the fluctuations in friction behaviour and improves surface morphology. Importantly, FS2 enhances the bearing capacity and barrier effect of the surface, thereby inhibiting the fracture behaviour. These results clarify the lubrication and fracture mechanisms of this composite surface textures.
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