COATED CUTTING TOOLS HAVING A PLATINUM GROUP METAL CONCENTRATION GRADIENT AND RELATED PROCESSES

• Main Authors: WILLS, DAVID, J, DORTCH, DEWITT, BOST, JOHN, MORTON, CRAIG, W
• Format: Patent
• Language: English; French
• Published: 03.03.2011
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The present disclosure is directed to cutting tools. The disclosed cutting tools may have a wear resistant coating on a substrate. The substrate may have hard particles cemented in a binder phase. The binder may have a near-surface concentration gradient of at least one platinum group element and/or rhenium. Processes for producing cutting tools are also disclosed. La présente invention porte sur des outils de coupe. Les outils de coupe décrits peuvent comporter un revêtement résistant à l'usure sur un substrat. Le substrat peut comporter des particules dures cémentées dans une phase de liant. Le liant peut avoir un gradient de concentration au voisinage de la surface d'au moins un élément du groupe du platine et/ou de rhénium. L'invention porte également sur des procédés pour produire des outils de coupe.