Friction and wear behavior of the PVD (Zr,Ti)N coated cemented carbide against 40Cr hardened steel

► PVD (Zr,Ti)N hard coatings are deposited on WC/TiC/Co cemented carbide. ► Friction and wear behavior and wear mechanism of the coatings are evaluated. ► EGC coating shows the best wear resistance under the same test conditions. ► The major failure mechanisms of the coatings are flaking and delamination