Patent ID: 6492011
Filing Date: 2002-12-10
Classification: C23C,Y10T

Abstract:
A wear-resistant workpiece comprising:a workpiece body; a wear-resistant layer system on at least a part of said body and comprising at least one hard material layer provided closest to said body; said hard material layer at least predominantly consisting of at least one material selected from the group consisting of: nitride, carbonitride, carbonitrooxide, nitroboride and carbonitroboride of both titanium and aluminum; and an intermediate layer between said body and said hard material layer, said intermediate layer at least predominantly consisting of at least one material selected from the group nitroboride, carbonitroboride and carbonitrooxide of at least one of chromium, tantalum, zirconium and titanium; and nitride and carbonitride of at least one of chromium, tantalum and zirconium, the intermediate layer being softer than the hard material layer to absorb and relax high compression stress of the hard material layer and reduce shear stress.