Rotational deformation modes in near-boundary regions of grain structure in a loaded polycrystal

D. D. Moiseenko, Yu I. Pochivalov, P. V. Maksimov, V. E. Panin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Experiments were performed to study the defect structure formation in a thin surface layer of 20Cr18Ni10Ti steel in frictional wear. It is shown that plastic deformation constrained by a friction pair is inhomogeneous and displays a vortex rotational character. A method of excitable cellular automata is developed for a theoretical description of the formation of vortex structures in multiscale polycrystalline structures. Numerical experiments demonstrate the formation of rotational deformation modes on different structural scales-modulation of local moments of forces along the grain boundary and fragmentation of initial structural elements in initial conglomerates of self-consistently deformed grains in the field of couple stresses.

Original languageEnglish
Pages (from-to)248-258
Number of pages11
JournalPhysical Mesomechanics
Volume16
Issue number3
DOIs
Publication statusPublished - 2013

Fingerprint

Crystal microstructure
Polycrystals
polycrystals
Vortex flow
Defect structures
Steel
Cellular automata
vortices
Plastic deformation
Grain boundaries
Experiments
Modulation
cellular automata
Wear of materials
Friction
plastic deformation
surface layers
fragmentation
friction
grain boundaries

Keywords

  • cellular automata
  • computer simulation
  • physical mesomechanics
  • tribological contact

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Rotational deformation modes in near-boundary regions of grain structure in a loaded polycrystal. / Moiseenko, D. D.; Pochivalov, Yu I.; Maksimov, P. V.; Panin, V. E.

In: Physical Mesomechanics, Vol. 16, No. 3, 2013, p. 248-258.

Research output: Contribution to journalArticle

Moiseenko, D. D. ; Pochivalov, Yu I. ; Maksimov, P. V. ; Panin, V. E. / Rotational deformation modes in near-boundary regions of grain structure in a loaded polycrystal. In: Physical Mesomechanics. 2013 ; Vol. 16, No. 3. pp. 248-258.
@article{28ee9570fbf944c49302d6e67c6fb5fc,
title = "Rotational deformation modes in near-boundary regions of grain structure in a loaded polycrystal",
abstract = "Experiments were performed to study the defect structure formation in a thin surface layer of 20Cr18Ni10Ti steel in frictional wear. It is shown that plastic deformation constrained by a friction pair is inhomogeneous and displays a vortex rotational character. A method of excitable cellular automata is developed for a theoretical description of the formation of vortex structures in multiscale polycrystalline structures. Numerical experiments demonstrate the formation of rotational deformation modes on different structural scales-modulation of local moments of forces along the grain boundary and fragmentation of initial structural elements in initial conglomerates of self-consistently deformed grains in the field of couple stresses.",
keywords = "cellular automata, computer simulation, physical mesomechanics, tribological contact",
author = "Moiseenko, {D. D.} and Pochivalov, {Yu I.} and Maksimov, {P. V.} and Panin, {V. E.}",
year = "2013",
doi = "10.1134/S1029959913030077",
language = "English",
volume = "16",
pages = "248--258",
journal = "Physical Mesomechanics",
issn = "1029-9599",
publisher = "Springer Science + Business Media",
number = "3",

}

TY - JOUR

T1 - Rotational deformation modes in near-boundary regions of grain structure in a loaded polycrystal

AU - Moiseenko, D. D.

AU - Pochivalov, Yu I.

AU - Maksimov, P. V.

AU - Panin, V. E.

PY - 2013

Y1 - 2013

N2 - Experiments were performed to study the defect structure formation in a thin surface layer of 20Cr18Ni10Ti steel in frictional wear. It is shown that plastic deformation constrained by a friction pair is inhomogeneous and displays a vortex rotational character. A method of excitable cellular automata is developed for a theoretical description of the formation of vortex structures in multiscale polycrystalline structures. Numerical experiments demonstrate the formation of rotational deformation modes on different structural scales-modulation of local moments of forces along the grain boundary and fragmentation of initial structural elements in initial conglomerates of self-consistently deformed grains in the field of couple stresses.

AB - Experiments were performed to study the defect structure formation in a thin surface layer of 20Cr18Ni10Ti steel in frictional wear. It is shown that plastic deformation constrained by a friction pair is inhomogeneous and displays a vortex rotational character. A method of excitable cellular automata is developed for a theoretical description of the formation of vortex structures in multiscale polycrystalline structures. Numerical experiments demonstrate the formation of rotational deformation modes on different structural scales-modulation of local moments of forces along the grain boundary and fragmentation of initial structural elements in initial conglomerates of self-consistently deformed grains in the field of couple stresses.

KW - cellular automata

KW - computer simulation

KW - physical mesomechanics

KW - tribological contact

UR - http://www.scopus.com/inward/record.url?scp=84883380128&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84883380128&partnerID=8YFLogxK

U2 - 10.1134/S1029959913030077

DO - 10.1134/S1029959913030077

M3 - Article

VL - 16

SP - 248

EP - 258

JO - Physical Mesomechanics

JF - Physical Mesomechanics

SN - 1029-9599

IS - 3

ER -