The influence of various factors on the properties of solid-soluble high-entropy alloys based on BCC and FCC phases

Keywords

high-entropy alloys, lattice distortion, enthalpy of mixing, hardness, modulus of elasticity.

Cite as

Gorban V. F., Firstov S. O., Krapivka M. O., Samelyuk A. V., and Kurylenko D. V. The influence of various factors on the properties of solid-soluble high-entropy alloys based on BCC and FCC phases. Physico¬chemical Mechanics of Materials. 2022. 58(1), 127-131.

Abstract

We study the influence of electron concentration, lattice distortion, and phase ratio on the hardness, elasticity modulus, and normalized hardness of high-entropy two-phase alloys. It is shown that the fractions of phases depend on the concentrations of electrons. A sharp increase in the FCC phase is observed for electronic concentrations higher than 8 el/at. For high-entropy two-phase alloys, we establish a linear dependence of the normalized hardness on the dimensional mismatch. The values of normalized hardness increase from 0.025 to 0.043 as the level of distortion increases from 2.3 to 4.3%.

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