CERMET, CUTTING TOOL CONTAINING SAME, AND METHOD FOR PRODUCING CERMET

Cermet contains a hard phase which contains carbonitride containing Ti and Nb and a metallic binder phase containing an iron-group element. The hard phase includes a granular core portion and a peripheral portion which covers at least a part of the core portion. The core portion contains composite c...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMURA, Katsumi, MICHIUCHI, Masato
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY LIME, MAGNESIA MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Cermet contains a hard phase which contains carbonitride containing Ti and Nb and a metallic binder phase containing an iron-group element. The hard phase includes a granular core portion and a peripheral portion which covers at least a part of the core portion. The core portion contains composite carbonitride expressed as Ti1-X-YNbXWYC1-ZNZ, where Y is not smaller than 0 and not greater than 0.05 and Z is not smaller than 0.3 and not greater than 0.6. The peripheral portion is composed to be higher in content of W than the core portion.