Progress in High Temperature Tribology of Metal Nitride Coatings

High temperature lubrication is one of the difficult problems in nuclear industry, aviation, vessel and steel field. Coating materials can greatly improve the high-temperature service performance of materials without changing the original substrate. Since nitride coating has the characteristics of good temperature tolorence, low friction factor, good wear resistance and so on, it has become a research hotspot in this field. Mono-elemental nitride coatings, binary-elemental nitride coatings, ternary-elemental nitride coatings, multilayer nitride coatings and high entropy alloy nitride coatings are reviewed from the composition and design of materials. Finally, the development of nitride coatings in the field of high temperature lubrication is prospected. It is considered that the developement non-nitride metal and nitride metal multigroup coatings and high entropy alloy nitride coatings and establishment of nitride coating database will become a new research focus, which is of great significance to guide the application and service of nitride coatings in high temperature lubrication and wear resistance conditions.