surface modification WC-based cemented carbide member, hard film-coated WC-based cemented carbide member, and a process for their preparation

摘要

To the surface of the WC-based cemented carbide substrate, by ion bombardment such as Cr in a gas mainly composed of nitrogen, to form a modified phase having a bcc structure on the substrate surface, on which When forming the hard coating containing at least Cr, it has high adhesiveness between the substrate and the hard coating by the reforming phase.