Abstract

A novel ultraviolet (UV)-curing method was introduced for the eco-friendly and efficient fabrication of a lubrication structure, which was achieved by filling various solid lubricants into laser surface textures. The composite solid lubricants ZB (2ZnO·3B2O3) and SiO2 were employed for texture filling. Results reveal that compared to pressure filling and thermal curing methods, surfaces treated with the UV-curing method exhibit superior antifriction and wear-resistant properties. During operation, solid lubricants are liberated from the laser texture and gradually released to the frictional interface, influenced by wear, extrusion, and thermal expansion. SiO2 plays micropolishing, self-healing, and microbearing roles. Concurrently, ZB establishes a boundary protective film, bolstering frictional stability and diminishing wear. The synergistic interplay between solid lubricants, as well as between solid lubricants and laser surface texture, enhances the tribological properties of sliding bearings in mixed lubrication conditions.

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