OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 26 No. 4 2024 and dielectric materials, and the development of solid oxide fuel cells [73]. At the Siberian State Industrial University, researchers talk about the use of HEAs as coatings for ship parts, dissimilar welded joints, and nuclear reactor parts [74]. At South Ural State University, the study concluded that the strength and plasticity properties of the considered HEAs correspond to the best samples of high-alloy austenitic steels used in cryogenic technology [75]. At Voronezh State University of Forestry and Technologies, there is a mention of the potential for using HEAs to restore machine parts through atmospheric plasma spraying [76]. The University of Manchester notes that the extended compositional freedom off ered by HEAs presents a unique opportunity for developing alloys for advanced nuclear applications, particularly in areas where existing engineering alloys fall short [77]. Discussion The study of HEAs is a relevant and promising topic in modern materials science, covering a wide range of scientifi c and engineering research. The goal of this work was to highlight the latest achievements in this fi eld, conduct a comparative analysis of published research, and identify the most promising directions for further investigation. The section on HEA production methods reviews various technologies, including mechanical alloying, vacuum induction melting, and alloying element addition methods. These methods aim to achieve high homogeneity in alloy composition and microstructure, which is critically important for its mechanical and physical properties. Alloying plays a key role in modifying the chemical composition of HEAs to optimize mechanical, thermal, and corrosion properties. HEA-based coatings represent a promising direction for protecting materials from corrosion and wear, which is particularly important in the aerospace and nuclear industries. Special attention is given to research on the thermal resistance and thermal stability of HEAs, which is important for its application in extreme conditions, such as high temperatures and aggressive environments. The strength and plastic properties of HEAs are at the forefront of research, as these materials often outperform traditional alloys in strength and resistance to deformation. The most promising direction for future research is the study of the electrical conductivity and magnetic properties of HEAs. This fi eld opens up signifi cant opportunities for the development of new energysaving technologies, high-performance sensors, and magnetic materials, which could lead to substantial innovations in areas such as electronics, energy, and information technology. Conclusion Based on the analysis, it can be concluded that HEAs represent a promising class of materials with great potential for innovation. Future research should focus on expanding the knowledge in the areas of HEA compositions, methods, and properties, as well as developing new materials with improved characteristics. This will open new horizons for technological advancements and improve the effi ciency and reliability of materials used in various industrial sectors. References 1. Yeh J.W., Chen S.K., Lin S.J., Gan J.Y., Chin T.S., Shun T.T., Tsau C.H., Chang S.Y. Nanostructured highentropy alloys with multiple principal elements: novel alloy design concepts and outcomes. Advanced Engineering Materials, 2004, vol. 6, pp. 299–303. DOI: 10.1002/adem.200300567. 2. Cantor B., Chang I.T.H., Knight P., Vincent A.J.B. Microstructural development in equiatomic multicomponent alloys. Materials Science and Engineering: A, 2004, vol. 375–377, pp. 213–218. DOI: 10.1016/j. msea.2003.10.257. 3. Rogachev A.S. Structure, stability, and properties of high-entropy alloys. The Physics of Metals and Metallography, 2020, vol. 121 (8), pp. 733–764. DOI: 10.1134/S0031918X20080098. 4. Cui K., ZhangY. High-entropy alloy fi lms. Coatings, 2023, vol. 13 (3), p. 635. DOI: 10.3390/coatings13030635.
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