Abstract
The effect of heat treatment (diffusion annealing, quenching, low-temperature and high-temperature tempering) on the structure, phase composition and corrosion resistance of high-entropy 35 Fe – 30 Cr – 20 Ni – 10 Mo – 5 W and 30 Fe – 30 Cr – 20 Ni – 10 Mo – 10 W alloys has been studied. High-entropy alloys of the Fe – Cr – Ni – Mo – W system with different concentrations of tungsten were obtained by sintering mechanically alloyed powders in a vacuum furnace. It was revealed that the total and pitting resistance of the obtained high-entropy alloys to aqueous solutions of NaCl is higher than that of industrially produced austenitic corrosion-resistant steel 316 L used in the oil and gas industry.
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