Dislocation self-organization processes and crystal plasticity

The theoretical treatment of the evolution of a dislocation ensemble in a plastically deformed real crystal is discussed. Kinetic equations for the dislocation density are formulated which include elementary dislocation processes (source generation, immobilization, multiplication, annihilation, and diffusion) and on the basis of which the first three stages of the crystal’s strain-hardening curves are quantitatively analyzed. Dislocation self-organization processes leading to slip localization and various nonuniform dislocation structures are considered. Mechanisms of the formation of slip lines, slip bands, defect-free (annihilation) channels in neutron-irradiated or quenched crystals, and dislocation cellular structures are discussed in detail based on the equations obtained. A comparison of theoretical results with experimental data is made.

PACS: 61.72.Bb, 62.20.Fe, 83.50.−v (all)
DOI: 10.1070/pu1999v042n09ABEH000563
URL: https://ufn.ru/en/articles/1999/9/c/
Web of Science

000083399000003
Citation: Malygin G A "Dislocation self-organization processes and crystal plasticity" Phys. Usp. 42 887 (1999)

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Оригинал: Малыгин Г А «Процессы самоорганизации дислокаций и пластичность кристаллов» УФН 169 979–1010 (1999); DOI: 10.3367/UFNr.0169.199909c.0979

References (299) Cited by (88) Similar articles (20) ↓

A.I. Olemskoi, I.A. Sklyar “Evolution of the defect structure of a solid during plastic deformation” Sov. Phys. Usp. 35 (6) 455–480 (1992)
V.I. Al’shits, V.L. Indenbom “Dynamic dragging of dislocations” Sov. Phys. Usp. 18 1–20 (1975)
E.M. Nadgornyi, Yu.A. Osip’yan et al “Filamentary crystals with almost the theoretical strength of perfect crystals” Sov. Phys. Usp. 2 282–304 (1959)
R.A. Andrievski, A.M. Glezer “Strength of nanostructures” Phys. Usp. 52 315 (2009)
G.I. Kanel, V.E. Fortov, S.V. Razorenov “Shock waves in condensed-state physics” Phys. Usp. 50 771–791 (2007)
B.S. Kerner, V.V. Osipov “Self-organization in active distributed media: scenarios for the spontaneous formation and evolution of dissipative structures” Sov. Phys. Usp. 33 (9) 679–719 (1990)
A.L. Roitburd “The theory of the formation of a heterophase structure in phase transformations in solids” Sov. Phys. Usp. 17 326–344 (1974)
R.B. Morgunov “Spin micromechanics in the physics of plasticity” Phys. Usp. 47 125–147 (2004)
I.K. Razumov, A.Y. Yermakov et al “Nonequilibrium phase transformations in alloys under severe plastic deformation” Phys. Usp. 63 733–757 (2020)
G.A. Malygin “Strength and plasticity of nanocrystalline materials and nanosized crystals” Phys. Usp. 54 1091–1116 (2011)
A.M. Kosevich, V.S. Boiko “Dislocation theory of the elastic twinning of crystals” Sov. Phys. Usp. 14 286–316 (1971)
A.M. Kosevich “Dynamical theory of dislocations” Sov. Phys. Usp. 7 837–854 (1965)
A.G. Merzhanov, É.N. Rumanov “Nonlinear effects in macroscopic kinetics” Sov. Phys. Usp. 30 293–316 (1987)
E.Yu. Kokorish, N.N. Sheftal’ “Dislocations in semiconductor crystals” Sov. Phys. Usp. 3 840–849 (1961)
A.N. Vasil’ev, V.D. Buchel’nikov et al “Shape memory ferromagnets” Phys. Usp. 46 559–588 (2003)
G.A. Malygin “Diffuse martensitic transitions and the plasticity of crystals with a shape memory effect” Phys. Usp. 44 173 (2001)
A.V. Khomenko, I.A. Lyashenko “Statistical theory of the boundary friction of atomically flat solid surfaces in the presence of a lubricant layer” Phys. Usp. 55 1008–1034 (2012)
G.L. Belen’kii, E.Yu. Salaev, R.A. Suleimanov “Deformation effects in layer crystals” Sov. Phys. Usp. 31 434–455 (1988)
M.I. Kaganov, Ya.V. Kravchenko, V.D. Natsik “Dislocation dragging by electrons in metals” Sov. Phys. Usp. 16 878–891 (1974)
G.V. Kurdyumov, N.V. Klassen-Neklyudova “Progress in the theory of strength and plasticity of solids (A review of A. V. Stepanov’s works)” Sov. Phys. Usp. 16 828–833 (1974)

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