Issues $\rightarrow$ Volume 26, Issue 4 (2025)

Current State of Research in the Field of High-Entropy Alloys’ Production in Global Practice

KVON S.V., KULIKOV V.Yu., ARINOVA S.K., and ТUGANBAYEVA А.А.

Abylkas Saginov Karaganda Technical University, 56 Nursultan Nazarbayev Ave., 100003 Karaganda, Kazakhstan

Received / Final version: 18.05.2025 / 25.10.2025 Download PDF logo PDF

Abstract
Metallic multicomponent high-entropy alloys (HEAs) represent a novel class of materials, which are currently the focus of extensive research. This article reviews the evolution of studies in the field of HEAs and identifies potential application areas for these materials. Recent investigations are discussed, particularly addressing the influence of various elements on the properties of HEAs with different base compositions, the formation of their microstructures, and developments in alloy design. The analysis indicates that HEAs are predominantly manufactured from pure metal powders using advanced and complex technologies such as plasma sintering and magnetron sputtering. To reduce the production costs of HEAs compared to conventional materials, increasing attention is being directed towards the development of so-called quasi-high-entropy alloys (QHEAs). The fundamental approach to creating QHEAs is analogous to that used for HEAs: a multicomponent system comprising at least five elements. However, strict equiatomic concentrations are not maintained, and requirements for charge materials and melting processes are considerably relaxed. This strategy enhances the commercial viability of QHEAs, while retaining properties comparable to those of HEAs.

Keywords: high-entropy alloy (HEA), quasi-high-entropy alloy (QHEA), equiatomic concentration, ferroalloys, production cost.

DOI: https://doi.org/10.15407/ufm.26.04.***

Citation: S.V. Kvon, V.Yu. Kulikov, S.K. Arinova, and А.А. Тuganbayeva, Current State of Research in the Field of High-Entropy Alloys’ Production in Global Practice, Progress in Physics of Metals, 26, No. 4: ***–*** (2025)

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