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Molecular dynamics study of size effect on uniaxial tension of single crystal Cu nanowires

  • Xiaochun Ma*
  • , Jihui Yin
  • , Junjie Zhang
  • *Corresponding author for this work
  • Northeast Forestry University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The uniaxial tensions of single crystal Cu nanowires (NWs) with different circular cross-section radiuses are simulated by molecular dynamics (MD) method. Atomic interactions in Cu NWs are described by EAM potential. The results show that the plastic deformation of NWs under uniaxial tension is dominantly controlled by dislocation nucleation and gliding. The mechanical properties of NWs are size-dependent. The NWs with larger radius of cross-section possess higher strength and ductility. Furthermore, the site of neck formation and following break of NWs has strong dependence on size scale of NWs.

Original languageEnglish
Title of host publicationMaterials Science and Engineering Applications
Pages682-686
Number of pages5
DOIs
StatePublished - 2011
Event2011 International Conference on Materials Science and Engineering Applications, ICMSEA 2011 - Xi'an, China
Duration: 15 Jan 201116 Jan 2011

Publication series

NameAdvanced Materials Research
Volume160-162
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Materials Science and Engineering Applications, ICMSEA 2011
Country/TerritoryChina
CityXi'an
Period15/01/1116/01/11

Keywords

  • Mechanical properties
  • Molecular dynamics
  • Nanowires
  • Uniaxial tension

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