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Issue 5, 2024
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Reviews of topical problems


Physics of severe plastic deformation

 a, b, †  c, ‡  b, §  d, e
a National University of Science and Technology "MISIS", Leninskii prosp. 4, Moscow, 119049, Russian Federation
b G.V. Kurdyumov Institute for Physical Metallurgy of I.P. Bardin Science Center for Ferrous Metallurgy, 2-ya Baumanskaya ul. 9/23, Moscow, 105005, Russian Federation
c MIREA - Russian Technological University, prosp. Vernadskogo 78, Moscow, 119454, Russian Federation
d A.A. Galkin Donetsk Physical-Technical Institute, ul. R. Lyuksemburg 72, Donetsk, 340114, Ukraine
e Donetsk National University, Universitetskaya str. 24, Donetsk

The review describes a number of important recent studies in the field of physical fundamentals of severe plastic deformations (SPDs) in metals and alloys and their further systematization. Based on analyses of experimental data and theoretical approaches, we formulate for the first time three fundamental principles and seven characteristic features inherent in SPD processes. SPD physics is entirely based on the postulates of nonequilibrium thermodynamics. A solid under deformation is considered a mechanical dissipative system in which the total energy continuously decreases or dissipates, converting into other, nonmechanical, forms of energy. Within the framework of the proposed nonequilibrium evolutionary thermodynamics, it is possible to describe from a unified standpoint the evolution of the structure of defects for polycrystalline and amorphous metallic materials upon SPD. We note that the process of mechanical alloying of powders should not be completely identified with SPD processes.

Fulltext pdf (1.2 MB)
Fulltext is also available at DOI: 10.3367/UFNe.2021.07.039024
Keywords: severe plastic deformation, structures, fragmentation, dynamic recrystallization, nonequilibrium thermodynamics, defects, dissipation, internal energy, diffusion, phase transformations, amorphous state, evolution equations
PACS: 05.70.Ce, 05.70.Ln, 62.20.M− (all)
DOI: 10.3367/UFNe.2021.07.039024
URL: https://ufn.ru/en/articles/2023/1/c/
001112589600002
2-s2.0-85182906882
2023PhyU...66...32G
Citation: Glezer A M, Sundeev R V, Shalimova A V, Metlov L S "Physics of severe plastic deformation" Phys. Usp. 66 32–58 (2023)
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Received: 3rd, July 2021, 18th, July 2021

Îðèãèíàë: Ãëåçåð À Ì, Ñóíäååâ Ð Â, Øàëèìîâà À Â, Ìåòëîâ Ë Ñ «Ôèçèêà áîëüøèõ ïëàñòè÷åñêèõ äåôîðìàöèé» ÓÔÍ 193 33–62 (2023); DOI: 10.3367/UFNr.2021.07.039024

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