The tribological potential of CrN and Cr(C,N) deposited by multi-arc PVD process

Lubrication of TiN, CrN and DLC PVD Coatings with 1-Butyl-1-Methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate

“…Other researches on the tribological behaviour of CrN coatings have demonstrated similar results with a low-friction coefficient and better wear resistant than TiN coatings under both dry and lubricated conditions [37,38]. The exact mechanisms that control friction and wear behaviour of these coatings are not well-understood, but certain researchers have attributed high friction of TiN to the formation of TiOx while the relatively low friction of CrN was also related to the oxygen-rich tribofilms forming on its sliding surfaces [39].…”

An analysis on tribological performance of CrCN coatings with different carbon contents in seawater

“…Some mechanical components such as piston pumps, seal rings and slide or thrust bearings working in water or seawater conditions lead to severe damage during running-in period, frequent starting/stopping, over-loading and over-speeding, which result in the ever-stringent requirements for protective and lubricating surface layers [2]. CrN coating has been demonstrated a good protective coating candidate for aqueous hydraulic system applications due to its high hardness, good wear resistance and corrosion resistance in the past years [3][4][5][6][7][8][9]. However, sometimes CrN coating cannot satisfy the application in some conditions, especially under extreme conditions because of its high friction coefficient [10,11].…”

Structure and Friction Behavior of CrNx/a-C:H Nanocomposite Films

“…However, there are increasing numbers of applications where the mechanical and chemical properties of the binary nitrides are not sufficient. To further improve the tribological properties of CrN, alloying with another element to form a ternary hard coating has been explored [6][7][8][9][10][11]. Most frequently, a low friction coefficient is required, which helps to reduce friction losses and to increase load support capability.…”