The Effect of Heat Treatment and Tungsten Content on the Structure, Phase Composition, and Corrosion Resistance of High-Entropy Alloys of the Fe–Cr–Ni–Mo–W System

—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 35Fe–30Cr–20Ni–10Mo–5W and 30Fe–30Cr–20Ni–10Mo–10W alloys has been studied. High-entropy alloys of the Fe–Cr–Ni...

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Bibliographic Details
Published in:Inorganic materials : applied research 2024-04, Vol.15 (2), p.451-456
Main Authors: Ivannikov, A. Yu, Kudashev, M. A., Puchkov, Yu. A., Karpukhin, S. D., Nazarkin, R. M., Konushkin, S. V., Kaplan, M. A., Zelensky, V. A.
Format: Article
Language:English
Subjects:
Alloy powders
Aqueous solutions
Austenitic stainless steels
Chemistry
Chemistry and Materials Science
Chromium
Corrosion resistance
Corrosion resistant steels
General Purpose Materials
Heat treatment
High entropy alloys
High temperature
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Iron
Low temperature
Materials Science
Mechanical alloying
Molybdenum
Nickel
Phase composition
Pitting (corrosion)
Sintering (powder metallurgy)
Tungsten
Vacuum furnaces
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Summary:—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 35Fe–30Cr–20Ni–10Mo–5W and 30Fe–30Cr–20Ni–10Mo–10W alloys has been studied. High-entropy alloys of the Fe–Cr–Ni–Mo–W system with different concentrations of tungsten are obtained by sintering mechanically alloyed powders in a vacuum furnace. It is 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 316L used in the oil and gas industry.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113324020229