Abstract
The multiple advantages of flake MoS2 are of great significance for improving the fretting wear resistance of bonded solid lubricant coating. Herein, the coating was constructed with liquid-phase exfoliated flake MoS2 as lubricating filler and epoxy resin as binder. The tangential fretting characteristics for the contact of AISI 52,100 steel ball against the as-prepared coating on the AISI 1045 steel were investigated under three displacement amplitude. Results show that the average friction coefficient and wear rate of the coating with flake MoS2 maximumly reduce by 45.5% and 89.8% than those with bulk MoS2. Moreover, the fretting regime is regulated by the coatings with different composition and performance. Such excellent anti-fretting features depend on: (a) the intrinsic shearing properties of flake MoS2; (b) the repairing effect on the worn area; (c) the formation of uniform transfer film.
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