Co-BASED ALLOY FOR SURFACE HARDENING

PROBLEM TO BE SOLVED: To provide an age-hardenable Co-based alloy suitable for surface hardening.SOLUTION: The Co-based alloy for surface hardening is composed of, by mass, 25.0-45.0% Cr, 8.0-35.0% Fe, 1.0-5.0% Si, 0.2-2.0% B, ≤6.0% in total at least one of W and Mo, ≤12.0% Ni, ≤3.0% Cu and Mn, ≤1.0...

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Hauptverfasser:	TANOUE TATSURO, TAKAHASHI JUN, OTOBE KATSUNORI, NAGAI SHOZO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an age-hardenable Co-based alloy suitable for surface hardening.SOLUTION: The Co-based alloy for surface hardening is composed of, by mass, 25.0-45.0% Cr, 8.0-35.0% Fe, 1.0-5.0% Si, 0.2-2.0% B, ≤6.0% in total at least one of W and Mo, ≤12.0% Ni, ≤3.0% Cu and Mn, ≤1.0% Al, Ti and Nb, ≤0.2% C, and ≤12.0% in total of Ni, Cu, Mn, Al, Ti, Nb and C, and the balance 30.0-60.0% Co with inevitable impurities.