For improving the tribological performance, the textured composite solid lubricant coating was prepared on the surface of TC4. The effects of composite coating with different texture densities on the tribological properties of TC4 were studied. The results show that the coating improves the microhardness of TC4 surface, and appropriate texture density effectively suppresses the stress of contact interface so that the average friction coefficient of TC4-based 25 % density wavy textured composite solid lubricant coating sample (TCWs-SW25) is 50.24 % lower than that of TC4, and the average wear loss is reduced by 97.66 %. The enhancement of contact interface performance comes from the transfer effect of lubricants to reduce the number of interfacial asperities, thereby improves the friction and wear properties and inhibits vibration and noise of TC4.

To improve the tribological performance of CSS-42L bearing steel, smooth surfaces (SSs), groove-textured surfaces (GSs), GSs with Sn–Ag–Cu (GSs–SAC), and GSs with Sn–Ag–Cu–Ti₃C₂ (GSs–SACT) were prepared on CSS-42L. In addition, experimental studies were conducted on tribological properties. The obtained results indicated that GSs–SACT exhibited the best anti-friction and noise reduction performances. These remarkable tribological performances were attributed to the synergistic effects of grooves, Sn–Ag–Cu, and MXene–Ti₃C₂. The inconsistent rules of frictional forces were improved by the grooves and SACT, which inhibit the friction-induced noise. The micro-nano size-effects of MXene–Ti₃C₂ enhanced the repairing effect and anti-friction property of composite lubricants, which improved the profile characteristics of GSs–SACT.