Concentration effects in multicomponent metallic solid solutions

S.I. Protsenko; L.V. Odnodvorets; N.I. Shumakova; O.O. Pasko; I.Yu. Protsenko

doi:10.15330/pcss.25.2.284-288

Authors

S.I. Protsenko Sumy State University Sumy, Ukraine
L.V. Odnodvorets Sumy State University Sumy, Ukraine
N.I. Shumakova Sumy State University, Sumy, Ukraine
O.O. Pasko Sumy State University Sumy, Ukraine
I.Yu. Protsenko Sumy State University Sumy, Ukraine

DOI:

https://doi.org/10.15330/pcss.25.2.284-288

Keywords:

Lattice parameter, Debye temperature, Multicomponent and high-entropy solid solution, Equiatomic approximation, Concentration coefficients

Abstract

In the equiatomic approximation, the dependence of the lattice FCC parameter and the Debye temperature from the atomic fate x of the doping element, which is alternately represented by all elements of a multicomponent solid solution, including high-entropy alloys were obtained. The calculations were carried out on the example of a five-component (based on Cu, Ni, Co, Fe, and Al) or six-component (based on Cu, Ni, Co, Fe, and Cr, Ti) metal systems. It was found that by varying x within x = (0 - 0.3), it is possible to obtain a change in the lattice FCC parameter from 0 to 0.03 nm and the Debye temperatures from 0 to 80 K. The proposed new characteristics are integral and differential concentration coefficients, the magnitude and sign of which can predict concentration dependences for the lattice parameter and the Debye temperature.

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