Influence of crystallographic orientation on the response of copper crystallites to nanoindentation

Aleksandr V. Korchuganov, Dmitrij S. Kryzhevich, Konstantin P. Zolnikov, Sergey G. Psakhie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Molecular dynamics simulation was performed to study the features of nucleation and development of plastic deformation in copper crystallites in nanoindentation with different crystallographic orientations of their loaded surface: (01 1) , (001), and (111). Atomic interaction was described by a potential constructed in terms of the embedded atom method. It is shown that behavior of the crystallite reaction force correlates well with a change in the fraction of atoms involved in local structural rearrangements. The generation of local structural changes decreases the slope of the crystallite reaction force curve or results in an extremum due to internal stress relaxation. Analysis of structural changes in the material being indented demonstrates that the orientation of its loaded surface greatly affects the features of nucleation and development of plastic deformation.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
PublisherAmerican Institute of Physics Inc.
Pages295-298
Number of pages4
Volume1623
ISBN (Print)9780735412606
DOIs
Publication statusPublished - 2014
EventInternational Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation
Duration: 3 Sep 20145 Sep 2014

Other

OtherInternational Conference on Physical Mesomechanics of Multilevel Systems 2014
CountryRussian Federation
CityTomsk
Period3.9.145.9.14

Keywords

  • Copper
  • Local structural changes
  • Molecular dynamics
  • Plastic deformation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Korchuganov, A. V., Kryzhevich, D. S., Zolnikov, K. P., & Psakhie, S. G. (2014). Influence of crystallographic orientation on the response of copper crystallites to nanoindentation. In AIP Conference Proceedings (Vol. 1623, pp. 295-298). American Institute of Physics Inc.. https://doi.org/10.1063/1.4898940