Cermet, Cutting Tool Containing the Same, and Method of Manufacturing Cermet

Cermet, Cutting Tool Containing the Same, and Method of Manufacturing 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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Michiuchi, Masato, Okamura, Katsumi
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
BORING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
PERFORMING OPERATIONS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TURNING
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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.