【英文专版】Grease plays an important role in reducing friction loss and providing friction surface protec

Grease plays important roles in reducing frictional loss and providingprotection of rubbing surfaces. Anti-galling Effects of α-Zirconium PhosphateNanoparticles as Grease Additives. In this research, they investigated theeffects of α-Zirconium Phosphate nanoparticles as additives in grease on thegalling behavior of a pair of steels (4130 against P530). Results showed thatthe addition of 0.5wt% of nanoparticles could reduce the friction for 10% andgalling 80%. In terms of particle sizes, the 1µm-sized particles have theprofound influence in galling reduction. This is due to the increasedcontribution of van der Waals forces in the stacked layers of those particles.Under shear, those particles are exfoliated, resulting in low friction and moresurface coverage to protect surfaces from galling.