Nano- and submicron-structured sulfide self-lubricating coatings produced by thermal spraying

Nano- and submicron- structured iron sulfide self- lubricating coatings were produced by the HVOF thermal spraying method. Tribological tests showed that the thermal sprayed self- lubricating coatings not only exhibit a low coefficient of friction, but also showed excellent sliding wear resistance and high load capacity. This technique opens up a new way to make high performance self- lubricating coatings on components or parts, such as piston rings, cylinder liners, gears, heavy duty rear axle spiders, and rollers, especially parts working in difficult lubrication conditions.