Influence of the composition of high-temperature nickel-alloy electrodes on the ingot composition in vacuum arc remelting

Abstract

Statistical analysis of the chemical composition of high-temperature VZh159 nickel alloy in vacuum-induction melting and vacuum arc remelting yields regression equations that may be used to predict the metal composition in the ingots obtained by vacuum arc remelting as a function of the components in the consumable electrodes. The variation in oxygen, carbon, nitrogen, sulfur, and phosphorus concentrations in remelting is determined. The results are used in the design of production processes for high-temperature nickel-alloy ingots at PAO Ruspolimet.