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The effects of in-plane prestrain on the anti-pressure and anti-wear performance of monolayer MoS 2 have been investigated by molecular dynamics simulation. The results show that monolayer MoS 2 observably improves the load bearing capacity of Pt substrate. The friction reduction effect depends on the deformation degree of monolayer MoS 2 . The anti-pressure performance of monolayer MoS 2 and Pt substrate is enhanced by around 55.02% when compressive prestrain increases by 4.03% and the anti-wear performance is notably improved as well. The improved capacities for resisting the in-plane tensile and out-of-plane compressive deformation are responsible for the outstanding lubrication mechanism of monolayer MoS 2 . This study provides guidelines for optimizing the anti-pressure and anti-wear performance of MoS 2 and other two-dimension materials which are subjected to the in-plane prestrain.

Effect of Compressive Prestrain on the Anti-Pressure and Anti-Wear Performance of Monolayer MoS2: A Molecular Dynamics Study