Abstract: The present invention relates to a non-hydrogenated transition metal-doped diamond-like carbon (DLC), wherein the non-hydrogenated DLC comprises at least one transition metal selected from groups 4d, 5d and 6d of the periodic table of elements. A part of the at least one transition metal is present in the form of carbide of the at least one transition metal in the non-hydrogenated DLC as a matrix, and another part is present as metal droplets. The non-hydrogenated transition metal-doped DLC has an indentation hardness of ?35 GPa, preferably of ?40 GPa. Due to the presence of metal droplets, the doped DLC is highly effective in improving wear resistance and/or reducing friction of a surface when a coating of the material is applied on the surface. Further, the present invention provides a cathodic arc discharge deposition method for depositing a coating of the non-hydrogenated transition metal-doped DLC according to the present invention.

Abstract: A composite coating for a metal forming member includes a first layer disposed on said metal forming member. The first layer includes chromium nitride doped with at least one dopant such as tungsten. A second layer is disposed atop said first layer, said second layer including a lubricious material having a coefficient of friction of less than or equal to 0.2 as measured against low alloy steel.

Abstract: A composite coating for a metal forming member includes a first layer disposed on said metal forming member. The first layer includes chromium nitride doped with at least one dopant such as tungsten. A second layer is disposed atop said first layer, said second layer including a lubricious material having a coefficient of friction of less than or equal to 0.2 as measured against low alloy steel.