Study of mechanical and tribological properties of multilayered coatings with sub-micron spacing

This work gathers a comparative study of the mechanical and tribological behaviour (microhardness under load, Young modulus, elastic-plastic properties, friction and wear coefficients) of TiN/CrN and TiN/AlTiN multilayers deposited by conventional industrial PVD techniques. PVD multilayers with about between 50 nm individual layer thickness were deposited on flat samples of Co-cemented WC achieving a total thickness of about 2 microns. Mechanical and Tribological tests include microhardness under load at final loads between 10 mN aand 750 mN, Young modulus calculations and friction and wear tests.