NI BASE ALLOY FOR ENGINE VALVE AND VALVE SEAT THEREOF

PURPOSE:To provide a Ni base alloy excellent in high temp. hardness, heat shock resistance and lead oxide corrosion resistance, obtained by containing C, Cr, Fe, W, Co, Mo, Ti and Al in Ni in a specific ratio. CONSTITUTION:A Ni base alloy having a composition containing, on the basis of a wt., 0.55-...

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Bibliographische Detailangaben
Hauptverfasser:	OOE JIYUNYA, YABUKI TATSUMORI, SAITOU SADAO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BLASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING STEAM ENGINES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a Ni base alloy excellent in high temp. hardness, heat shock resistance and lead oxide corrosion resistance, obtained by containing C, Cr, Fe, W, Co, Mo, Ti and Al in Ni in a specific ratio. CONSTITUTION:A Ni base alloy having a composition containing, on the basis of a wt., 0.55-2% C, 10- less than 28% Cr, 1-30% Fe, 0.1-17.0% W, 1-8% Co, 0.1-8.0% Mo, 0.01-4.5% Ti and 0.01-4.5% Al and comprising the remainder Ni and inevitable impurities is prepared. According to necessity, 0.1-3.0% Si or 0.1-2.0% Mn can be contained and, further, if necessary, one or both of 0.01- 1.5% Nb and 0.01-1.5% B can be contained. When this alloy is used in welding or in preparing a cast article, excellent properties are developed over a long period.