Gradient Metals’ Microstructure Change under Severe Plastic Deformation: A Review
I. E. Volokitina, A. V. Volokitin, T. D. Fedorova, E. N. Reshotkina, G. M. Zhumanazarova
Karaganda Industrial University, 30 Republic Ave., KZ-101400 Temirtau, Republic of Kazakhstan
Received: 25.02.2025; final version - 13.05.2025. Download: PDF
Research of gradient-structure conditions in metals is rapidly developing area of materials science providing opportunities for creation of materials with unique properties. Long products such as bars and wires are of special interest here as combination of harder surface layer and softer inner part within them allows optimizing a number of mechanical properties. Such gradient shift provides higher durability due to hard outer layer, efficient load distribution across the section, reducing stress concentration in critical points and, more importantly, increasing overall product plasticity. In case of sudden impact, e.g., a hit, softer inner layer may absorb the energy, preventing breakdown. This review study looks into various methods of obtaining gradient metals, mainly based on severe plastic deformation. Their influence on metal-materials’ microstructure and properties as well as most efficient areas of application for some of them are studied.
Key words: gradient metals, severe plastic deformation, microstructure.
URL: https://mfint.imp.kiev.ua/en/abstract/v48/i08/0889.html
DOI: https://doi.org/10.15407/mfint.48.08.0889
PACS: 46.50.+a, 62.20.F-, 81.20.Hy, 81.20.Wk, 81.40.Ef, 81.40.Lm, 83.50.Uv
Citation: I. E. Volokitina, A. V. Volokitin, T. D. Fedorova, E. N. Reshotkina, and G. M. Zhumanazarova, Gradient Metals’ Microstructure Change under Severe Plastic Deformation: A Review, Metallofiz. Noveishie Tekhnol., 48, No. 8: 889–906 (2026)