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

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 language	English
Title of host publication	AIP Conference Proceedings
Publisher	American Institute of Physics Inc.
Pages	295-298
Number of pages	4
Volume	1623
ISBN (Print)	9780735412606
DOIs	https://doi.org/10.1063/1.4898940
Publication status	Published - 2014
Event	International Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation Duration: 3 Sep 2014 → 5 Sep 2014

Other

Other	International Conference on Physical Mesomechanics of Multilevel Systems 2014
Country	Russian Federation
City	Tomsk
Period	3.9.14 → 5.9.14

Keywords

Copper
Local structural changes
Molecular dynamics
Plastic deformation

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4898940

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Influence of crystallographic orientation on the response of copper crystallites to nanoindentation. / Korchuganov, Aleksandr V.; Kryzhevich, Dmitrij S.; Zolnikov, Konstantin P.; Psakhie, Sergey G.

AIP Conference Proceedings. Vol. 1623 American Institute of Physics Inc., 2014. p. 295-298.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Korchuganov, AV, Kryzhevich, DS, Zolnikov, KP & Psakhie, SG 2014, Influence of crystallographic orientation on the response of copper crystallites to nanoindentation. in AIP Conference Proceedings. vol. 1623, American Institute of Physics Inc., pp. 295-298, International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russian Federation, 3.9.14. https://doi.org/10.1063/1.4898940

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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.",

keywords = "Copper, Local structural changes, Molecular dynamics, Plastic deformation",

author = "Korchuganov, {Aleksandr V.} and Kryzhevich, {Dmitrij S.} and Zolnikov, {Konstantin P.} and Psakhie, {Sergey G.}",

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AU - Korchuganov, Aleksandr V.

AU - Kryzhevich, Dmitrij S.

AU - Zolnikov, Konstantin P.

AU - Psakhie, Sergey G.

PY - 2014

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N2 - 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.

AB - 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.

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KW - Local structural changes

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KW - Plastic deformation

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