NICKEL-BASED CASTING HEAT RESISTANT ALLOY Russian patent published in 1997 - IPC

FIELD: nonferrous metallurgy. SUBSTANCE: invention relates to nickel-based alloys used for welding deposition onto parts operating under wear and high- temperature conditions and exposed to considerable cyclic and contact loadings. A known alloy into which tantalum and rhenium are introduced is finally composed of (in wt %): carbon, 0.12-0.18; chromium, 4.3-5.6; titanium, 0.9-1.3; aluminium, 5.65-6.25; cobalt, 8.0-10.0; niobium, 4.0-4.8; tungsten, 10.9-12.5; molybdenum, 2.5-3.5; iron, 0.1-1.0; lanthanum, 0.005-0.05; hafnium, 0.02-0.1; boron, 0.005-0.015; cerium, 0.005-0.025; yttrium, 0.005-0.025; tantalum, 0.15-0.35; rhenium, 0.15-0.35; nickel, the balance. EFFECT: increased initial hardness of alloy under high-temperature condition. 1 tbl