Ti-Cr-N Coatings Deposited by Physical Vapor Deposition on AISI D6 Tool Steels

In this study, physical vapor deposition (pvd) ti-cr-n coatings were deposited at two different temperatures100 and 400?c on hardened and tempered tool steel substrates. the influence of the applied deposition temperatureon the physical and mechanical properties of coatings such as roughness, thickness, phase composition, hardnessand young’s modulus were evaluated. phase compositions were studied by x-ray diffraction method. mechanicalproperties were determined by nano indentation. the results showed different behavior s in the mechanicalproperties by changing the deposition temperature. (ti, cr)n and tin coatings consisted of only one solid solutioncubic phase, while crn coatings exhibited hexagonal cr2n and cubic crn phases. mechanical behavior of the(ti, cr)n coatings was related to the ti content and their hardness reduced by decreasing the ti content. (ti, cr)ncoatings deposited at high temperature exhibited better mechanical properties compared to the coating depositedat low temperatures.