Abstract
The friction and wear behavior of polycrystalline diamond compact (PDC) and the evolution of the friction film under nano‑molybdenum disulfide (MoS2) lubricating additives after leaching cobalt were investigated under different friction pairs (SiC, ZrO2, and Al2O3). The results showed that the friction coefficient and wear rate of different matching materials and PDC after leaching cobalt in a solid–liquid lubrication environment are related to the amount of friction film formed on the sliding interface, the evolution behavior, and the filling effect of lubricating additives on the friction interface. Different matching materials and PDC after leaching cobalt will undergo dissimilar chemical reactions during the sliding process, and different wear mechanisms are obtained.
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