Md simulation of plastic deformation nucleation in stressed crystallites under irradiation

A. V. Korchuganov, K. P. Zolnikov, D. S. Kryzhevich, V. M. Chernov, S. G. Psakhie

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Investigation of plasticity nucleation in metals and alloys under irradiation and mechanical loading is one of the actual problems of materials science. Features of nucleation and evolution of defect system in stressed iron, vanadium and copper crystallites under irradiation are studied by molecular dynamics simulations. Crystallite volume was constant during deformation of specimens. Energy of primary knock-on atom forming atomic displacement cascade in stressed specimens is varied from 0.05 to 50 keV. It was found that atomic displacement cascades in such crys-tallites may cause global structural changes in region greater than radiation damaged zone. These changes are similar to ones taking place during mechanical loading of specimens. They are realized by twinning in iron and vanadium and by formation of partial dislocation loops in copper.

Original languageEnglish
Pages (from-to)42-48
Number of pages7
JournalProblems of Atomic Science and Technology, Series Thermonuclear Fusion
Volume38
Issue number1
Publication statusPublished - 2015

Fingerprint

Crystallites
Vanadium
crystallites
plastic deformation
Plastic deformation
Nucleation
Irradiation
nucleation
Iron
Copper
vanadium
irradiation
Twinning
cascades
Materials science
Plasticity
Molecular dynamics
iron
copper
simulation

Keywords

  • Atomic Displacement Cascades
  • Copper Crystals
  • Iron
  • Irradiation
  • Mechanical Stresses
  • Mole-Cular Dynamics.
  • Plastic Deformation
  • Vanadium

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Cite this

Korchuganov, A. V., Zolnikov, K. P., Kryzhevich, D. S., Chernov, V. M., & Psakhie, S. G. (2015). Md simulation of plastic deformation nucleation in stressed crystallites under irradiation. Problems of Atomic Science and Technology, Series Thermonuclear Fusion, 38(1), 42-48.

Md simulation of plastic deformation nucleation in stressed crystallites under irradiation. / Korchuganov, A. V.; Zolnikov, K. P.; Kryzhevich, D. S.; Chernov, V. M.; Psakhie, S. G.

In: Problems of Atomic Science and Technology, Series Thermonuclear Fusion, Vol. 38, No. 1, 2015, p. 42-48.

Research output: Contribution to journalArticle

Korchuganov, AV, Zolnikov, KP, Kryzhevich, DS, Chernov, VM & Psakhie, SG 2015, 'Md simulation of plastic deformation nucleation in stressed crystallites under irradiation', Problems of Atomic Science and Technology, Series Thermonuclear Fusion, vol. 38, no. 1, pp. 42-48.
Korchuganov, A. V. ; Zolnikov, K. P. ; Kryzhevich, D. S. ; Chernov, V. M. ; Psakhie, S. G. / Md simulation of plastic deformation nucleation in stressed crystallites under irradiation. In: Problems of Atomic Science and Technology, Series Thermonuclear Fusion. 2015 ; Vol. 38, No. 1. pp. 42-48.
@article{a459ef6e4dc344048d10f1ca6e5edfb4,
title = "Md simulation of plastic deformation nucleation in stressed crystallites under irradiation",
abstract = "Investigation of plasticity nucleation in metals and alloys under irradiation and mechanical loading is one of the actual problems of materials science. Features of nucleation and evolution of defect system in stressed iron, vanadium and copper crystallites under irradiation are studied by molecular dynamics simulations. Crystallite volume was constant during deformation of specimens. Energy of primary knock-on atom forming atomic displacement cascade in stressed specimens is varied from 0.05 to 50 keV. It was found that atomic displacement cascades in such crys-tallites may cause global structural changes in region greater than radiation damaged zone. These changes are similar to ones taking place during mechanical loading of specimens. They are realized by twinning in iron and vanadium and by formation of partial dislocation loops in copper.",
keywords = "Atomic Displacement Cascades, Copper Crystals, Iron, Irradiation, Mechanical Stresses, Mole-Cular Dynamics., Plastic Deformation, Vanadium",
author = "Korchuganov, {A. V.} and Zolnikov, {K. P.} and Kryzhevich, {D. S.} and Chernov, {V. M.} and Psakhie, {S. G.}",
year = "2015",
language = "English",
volume = "38",
pages = "42--48",
journal = "Problems of Atomic Science and Technology, Series Thermonuclear Fusion",
issn = "0202-3822",
publisher = "National Research Center Kurchatov Institute",
number = "1",

}

TY - JOUR

T1 - Md simulation of plastic deformation nucleation in stressed crystallites under irradiation

AU - Korchuganov, A. V.

AU - Zolnikov, K. P.

AU - Kryzhevich, D. S.

AU - Chernov, V. M.

AU - Psakhie, S. G.

PY - 2015

Y1 - 2015

N2 - Investigation of plasticity nucleation in metals and alloys under irradiation and mechanical loading is one of the actual problems of materials science. Features of nucleation and evolution of defect system in stressed iron, vanadium and copper crystallites under irradiation are studied by molecular dynamics simulations. Crystallite volume was constant during deformation of specimens. Energy of primary knock-on atom forming atomic displacement cascade in stressed specimens is varied from 0.05 to 50 keV. It was found that atomic displacement cascades in such crys-tallites may cause global structural changes in region greater than radiation damaged zone. These changes are similar to ones taking place during mechanical loading of specimens. They are realized by twinning in iron and vanadium and by formation of partial dislocation loops in copper.

AB - Investigation of plasticity nucleation in metals and alloys under irradiation and mechanical loading is one of the actual problems of materials science. Features of nucleation and evolution of defect system in stressed iron, vanadium and copper crystallites under irradiation are studied by molecular dynamics simulations. Crystallite volume was constant during deformation of specimens. Energy of primary knock-on atom forming atomic displacement cascade in stressed specimens is varied from 0.05 to 50 keV. It was found that atomic displacement cascades in such crys-tallites may cause global structural changes in region greater than radiation damaged zone. These changes are similar to ones taking place during mechanical loading of specimens. They are realized by twinning in iron and vanadium and by formation of partial dislocation loops in copper.

KW - Atomic Displacement Cascades

KW - Copper Crystals

KW - Iron

KW - Irradiation

KW - Mechanical Stresses

KW - Mole-Cular Dynamics.

KW - Plastic Deformation

KW - Vanadium

UR - http://www.scopus.com/inward/record.url?scp=84952915558&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952915558&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84952915558

VL - 38

SP - 42

EP - 48

JO - Problems of Atomic Science and Technology, Series Thermonuclear Fusion

JF - Problems of Atomic Science and Technology, Series Thermonuclear Fusion

SN - 0202-3822

IS - 1

ER -