Role of Various Parameters in the Formation of the Physicomechanical Properties of High-Entropy Alloys with BCC Lattices


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

An analysis of simple structures of the solid-solution non-ordered high-entropy alloys (HEAs) with a bcc crystal lattice has allowed us to determine the effect of various parameters on their physicomechanical properties. It was found that, as the hardness increases, the size mismatch results in a decrease in the modulus of elasticity; however, the normalized hardness characteristic increases. It has been found that, when the enthalpy of mixing of the bcc high-entropy alloys shifts to negative values, its effect on the hardness and modulus of elasticity is nonmonotonic. A formula for calculating the modulus of elasticity of high-entropy alloys with a bcc structure has been suggested that is based on the alloy composition and role of the most refractory metallic component.

About the authors

V. F. Gorban

Frantsevich Institute for Problems of Materials Science

Author for correspondence.
Email: gorban1944@ukr.net
Ukraine, Kiev, 03680

N. A. Krapivka

Frantsevich Institute for Problems of Materials Science

Email: gorban1944@ukr.net
Ukraine, Kiev, 03680

S. A. Firstov

Frantsevich Institute for Problems of Materials Science

Email: gorban1944@ukr.net
Ukraine, Kiev, 03680

D. V. Kurilenko

Frantsevich Institute for Problems of Materials Science

Email: gorban1944@ukr.net
Ukraine, Kiev, 03680

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2018 Pleiades Publishing, Ltd.