SHS Metallurgy of Nickel-Based Alloying Compositions for the Manufacture of High-Temperature Steels

摘要

The possibility of producing multicomponent master alloys with low-melting-point (Mg) and refractory (Ni, Mo, W) metals, which are used for the manufacture of high-temperature alloys in metallurgy, by SHS metallurgy is studied. The experiments are performed at a high inert gas pressure in a reactor. Highly exothermic powder mixtures of nickel oxide, molybdenum, tungsten, elementary magnesium, and elementary aluminum are used for synthesis. The experimental results demonstrate a strong effect of the ratio of the reagent masses, the gas pressure, and the magnesium and aluminum particle sizes on the laws of synthesis and the formation of the composition and microstructure of the end products.