HARD METAL SUBSTRATE BODY AND METHOD FOR PRODUCING THE SAME

• Main Authors: DAUB, WERNER, ROEDIGER, KLAUS, KASSEL, DIETER, DREYER, KLAUS, LENGAUER, WALTER, LOVONYAK, MARIANN, UCAKAR, VERA
• Format: Patent
• Language: English; French; German
• Published: 11.04.2007
• Subjects: ALLOYS; ARTIFICIAL STONE; CASTING; CEMENTS; CERAMICS; 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; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIME, MAGNESIA; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; REFRACTORIES; SLAG; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF NATURAL STONE; WORKING METALLIC POWDER

The combined dopant (Al, Cr, V, Nb, Ta, Ti, Zr, Hf) content in the substrate is limited to 4 weight % at most. The cubic phase content in the substrate is less than 4 vol%. The binder metal content (Fe, Co, and/or Ni) in an edge zone of the substrate is up to 1 microns, preferably up to 0.5 microns, falling to less than 0.5 times the binder content in the substrate interior An Independent claim is included for the method of manufacture