Comparative simulation study of the structure of the plastic zone produced by nanoindentation

Autores
Gao, Yu; Ruestes, Carlos Javier; Tramontina Videla, Diego Ramiro; Urbassek, Herbert M.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Using molecular-dynamics simulation, we study nanoindentation in fcc (Cu and Al) and bcc (Fe and Ta) metals by a spherical indenter and investigate the size of the plastic zone generated. We find that while it does not strongly depend on crystal structure, surface orientation, and indentation parameters, the extent of the plastic zone is substantially larger before the retraction of the indenter. After retraction, the results are in good agreement with available published data. Plasticity develops by the generation, propagation and reaction of dislocations; they fall into two groups, those that adhere to the indentation pit, and those that have been emitted either into the substrate interior or glide along the surface. The total length of the dislocation network generated roughly follows available geometrical estimates; results for individual surface orientations may, however, differ quite strongly. The radial distribution of the dislocations attached to the indentation pit is computed; as a rule it shows a maximum at some depth below the indentation pit.
Fil: Gao, Yu. University of Kaiserslautern; Alemania
Fil: Ruestes, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Tramontina Videla, Diego Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad de Mendoza; Argentina
Fil: Urbassek, Herbert M.. University of Kaiserslautern; Alemania
Materia
Dislocation Density
Dislocations
Molecular Dynamics
Nanoindentation
Pile-Up
Plastic Zone
Plasticity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/50113
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/50113
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparative simulation study of the structure of the plastic zone produced by nanoindentationGao, YuRuestes, Carlos JavierTramontina Videla, Diego RamiroUrbassek, Herbert M.Dislocation DensityDislocationsMolecular DynamicsNanoindentationPile-UpPlastic ZonePlasticityUsing molecular-dynamics simulation, we study nanoindentation in fcc (Cu and Al) and bcc (Fe and Ta) metals by a spherical indenter and investigate the size of the plastic zone generated. We find that while it does not strongly depend on crystal structure, surface orientation, and indentation parameters, the extent of the plastic zone is substantially larger before the retraction of the indenter. After retraction, the results are in good agreement with available published data. Plasticity develops by the generation, propagation and reaction of dislocations; they fall into two groups, those that adhere to the indentation pit, and those that have been emitted either into the substrate interior or glide along the surface. The total length of the dislocation network generated roughly follows available geometrical estimates; results for individual surface orientations may, however, differ quite strongly. The radial distribution of the dislocations attached to the indentation pit is computed; as a rule it shows a maximum at some depth below the indentation pit.Fil: Gao, Yu. University of Kaiserslautern; AlemaniaFil: Ruestes, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Tramontina Videla, Diego Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad de Mendoza; ArgentinaFil: Urbassek, Herbert M.. University of Kaiserslautern; AlemaniaPergamon-Elsevier Science Ltd2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50113Gao, Yu; Ruestes, Carlos Javier; Tramontina Videla, Diego Ramiro; Urbassek, Herbert M.; Comparative simulation study of the structure of the plastic zone produced by nanoindentation; Pergamon-Elsevier Science Ltd; Journal of the Mechanics and Physics of Solids; 75; 11-2015; 58-750022-5096CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S002250961400221Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmps.2014.11.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:06:57Zoai:ri.conicet.gov.ar:11336/50113instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:06:58.121CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative simulation study of the structure of the plastic zone produced by nanoindentation
title Comparative simulation study of the structure of the plastic zone produced by nanoindentation
spellingShingle Comparative simulation study of the structure of the plastic zone produced by nanoindentation
Gao, Yu
Dislocation Density
Dislocations
Molecular Dynamics
Nanoindentation
Pile-Up
Plastic Zone
Plasticity
title_short Comparative simulation study of the structure of the plastic zone produced by nanoindentation
title_full Comparative simulation study of the structure of the plastic zone produced by nanoindentation
title_fullStr Comparative simulation study of the structure of the plastic zone produced by nanoindentation
title_full_unstemmed Comparative simulation study of the structure of the plastic zone produced by nanoindentation
title_sort Comparative simulation study of the structure of the plastic zone produced by nanoindentation
dc.creator.none.fl_str_mv Gao, Yu
Ruestes, Carlos Javier
Tramontina Videla, Diego Ramiro
Urbassek, Herbert M.
author Gao, Yu
author_facet Gao, Yu
Ruestes, Carlos Javier
Tramontina Videla, Diego Ramiro
Urbassek, Herbert M.
author_role author
author2 Ruestes, Carlos Javier
Tramontina Videla, Diego Ramiro
Urbassek, Herbert M.
author2_role author
author
author
dc.subject.none.fl_str_mv Dislocation Density
Dislocations
Molecular Dynamics
Nanoindentation
Pile-Up
Plastic Zone
Plasticity
topic Dislocation Density
Dislocations
Molecular Dynamics
Nanoindentation
Pile-Up
Plastic Zone
Plasticity
dc.description.none.fl_txt_mv Using molecular-dynamics simulation, we study nanoindentation in fcc (Cu and Al) and bcc (Fe and Ta) metals by a spherical indenter and investigate the size of the plastic zone generated. We find that while it does not strongly depend on crystal structure, surface orientation, and indentation parameters, the extent of the plastic zone is substantially larger before the retraction of the indenter. After retraction, the results are in good agreement with available published data. Plasticity develops by the generation, propagation and reaction of dislocations; they fall into two groups, those that adhere to the indentation pit, and those that have been emitted either into the substrate interior or glide along the surface. The total length of the dislocation network generated roughly follows available geometrical estimates; results for individual surface orientations may, however, differ quite strongly. The radial distribution of the dislocations attached to the indentation pit is computed; as a rule it shows a maximum at some depth below the indentation pit.
Fil: Gao, Yu. University of Kaiserslautern; Alemania
Fil: Ruestes, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Tramontina Videla, Diego Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad de Mendoza; Argentina
Fil: Urbassek, Herbert M.. University of Kaiserslautern; Alemania
description Using molecular-dynamics simulation, we study nanoindentation in fcc (Cu and Al) and bcc (Fe and Ta) metals by a spherical indenter and investigate the size of the plastic zone generated. We find that while it does not strongly depend on crystal structure, surface orientation, and indentation parameters, the extent of the plastic zone is substantially larger before the retraction of the indenter. After retraction, the results are in good agreement with available published data. Plasticity develops by the generation, propagation and reaction of dislocations; they fall into two groups, those that adhere to the indentation pit, and those that have been emitted either into the substrate interior or glide along the surface. The total length of the dislocation network generated roughly follows available geometrical estimates; results for individual surface orientations may, however, differ quite strongly. The radial distribution of the dislocations attached to the indentation pit is computed; as a rule it shows a maximum at some depth below the indentation pit.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/50113
Gao, Yu; Ruestes, Carlos Javier; Tramontina Videla, Diego Ramiro; Urbassek, Herbert M.; Comparative simulation study of the structure of the plastic zone produced by nanoindentation; Pergamon-Elsevier Science Ltd; Journal of the Mechanics and Physics of Solids; 75; 11-2015; 58-75
0022-5096
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50113
identifier_str_mv Gao, Yu; Ruestes, Carlos Javier; Tramontina Videla, Diego Ramiro; Urbassek, Herbert M.; Comparative simulation study of the structure of the plastic zone produced by nanoindentation; Pergamon-Elsevier Science Ltd; Journal of the Mechanics and Physics of Solids; 75; 11-2015; 58-75
0022-5096
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S002250961400221X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmps.2014.11.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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