Friction and wear properties of a novel interface of ordered microporous Ni-based coating combined with MoS2 under complex working conditions

For realizing the function of friction reduction and wear resistance in one, this paper proposes a new type interface structure of ordered microporous Ni-based coating composite MoS2. When the micropore density is 19.63%, the new interface structure obtains the optimum tribological performance, and compared to matrix and traditional Ni based coating, the friction coefficient and wear rate of new structure can be reduced by more than 20% and 65% respectively. The cooperative interaction between the formed lubrication layer rich in MoS2 and hard Ni-based coating is the most important reason for imporving the friction reduction and wear resistance. The new friction interface can obtain stable and prominent tribological properties at wide load and low to medium speed.