Study of medium range reordering by plastic deformation in Cu46Zr46Al8

The influence of shear in the atomic structure of ternary Cu46Zr46Al8 metallic glass was studied at different temperatures by molecular dynamics (MD) simulation. At temperatures above and below the glass transition temperature the system was subjected to a shear deformation cycle; the shear deformat...

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Autores: Velasco Cruz, Jorge Enrique, Concustell, Amadeu, Pineda Soler, Eloi|||0000-0002-1871-3848, Crespo Artiaga, Daniel|||0000-0003-1743-2400
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/116748
Acceso en línea:https://hdl.handle.net/2117/116748
https://dx.doi.org/10.1016/j.jallcom.2018.01.370
Access Level:acceso abierto
Palabra clave:Anisotropy
Metallic glasses
Amorphous alloys
Aging and rejuvenation
Mechanical deformation
Anisotropia
Cristalls metàl·lics
Àrees temàtiques de la UPC::Física
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spelling Study of medium range reordering by plastic deformation in Cu46Zr46Al8Velasco Cruz, Jorge EnriqueConcustell, AmadeuPineda Soler, Eloi|||0000-0002-1871-3848Crespo Artiaga, Daniel|||0000-0003-1743-2400AnisotropyMetallic glassesAmorphous alloysAging and rejuvenationAnisotropyMechanical deformationAnisotropiaCristalls metàl·licsÀrees temàtiques de la UPC::FísicaThe influence of shear in the atomic structure of ternary Cu46Zr46Al8 metallic glass was studied at different temperatures by molecular dynamics (MD) simulation. At temperatures above and below the glass transition temperature the system was subjected to a shear deformation cycle; the shear deformation was carried in the [100] direction and then the original geometry was recovered. The system was analyzed in three states: initial state (before deformation), deformed state (sheared) and final state (recovery). The different states obtained by the atomistic simulations were examined by computing the directional pair distribution functions (dPDF) in the coordinate planes. The results showed by dPDFs of the planes perpendicular to the coordinate axis are apparently isotropic. However, the dPDF disengage when computed perpendicular to rotated axis. This reveals that the anisotropy introduced during the deformation cycles appears in directions [110] and [1?0], tilted 45° with respect to the direction of the applied shear. To analyze the subtle structural change we systematically computed the positions and widths of the dPDF peaks on the rotated directions, thence allowing us to describe in detail the different signatures of anisotropy induced by deformation in the metallic glasses.Peer Reviewed20182018-05-0520182018-04-26journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/116748https://dx.doi.org/10.1016/j.jallcom.2018.01.370reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1167482026-05-27T15:37:01Z
dc.title.none.fl_str_mv Study of medium range reordering by plastic deformation in Cu46Zr46Al8
title Study of medium range reordering by plastic deformation in Cu46Zr46Al8
spellingShingle Study of medium range reordering by plastic deformation in Cu46Zr46Al8
Velasco Cruz, Jorge Enrique
Anisotropy
Metallic glasses
Amorphous alloys
Aging and rejuvenation
Anisotropy
Mechanical deformation
Anisotropia
Cristalls metàl·lics
Àrees temàtiques de la UPC::Física
title_short Study of medium range reordering by plastic deformation in Cu46Zr46Al8
title_full Study of medium range reordering by plastic deformation in Cu46Zr46Al8
title_fullStr Study of medium range reordering by plastic deformation in Cu46Zr46Al8
title_full_unstemmed Study of medium range reordering by plastic deformation in Cu46Zr46Al8
title_sort Study of medium range reordering by plastic deformation in Cu46Zr46Al8
dc.creator.none.fl_str_mv Velasco Cruz, Jorge Enrique
Concustell, Amadeu
Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author Velasco Cruz, Jorge Enrique
author_facet Velasco Cruz, Jorge Enrique
Concustell, Amadeu
Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author_role author
author2 Concustell, Amadeu
Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author2_role author
author
author
dc.subject.none.fl_str_mv Anisotropy
Metallic glasses
Amorphous alloys
Aging and rejuvenation
Anisotropy
Mechanical deformation
Anisotropia
Cristalls metàl·lics
Àrees temàtiques de la UPC::Física
topic Anisotropy
Metallic glasses
Amorphous alloys
Aging and rejuvenation
Anisotropy
Mechanical deformation
Anisotropia
Cristalls metàl·lics
Àrees temàtiques de la UPC::Física
description The influence of shear in the atomic structure of ternary Cu46Zr46Al8 metallic glass was studied at different temperatures by molecular dynamics (MD) simulation. At temperatures above and below the glass transition temperature the system was subjected to a shear deformation cycle; the shear deformation was carried in the [100] direction and then the original geometry was recovered. The system was analyzed in three states: initial state (before deformation), deformed state (sheared) and final state (recovery). The different states obtained by the atomistic simulations were examined by computing the directional pair distribution functions (dPDF) in the coordinate planes. The results showed by dPDFs of the planes perpendicular to the coordinate axis are apparently isotropic. However, the dPDF disengage when computed perpendicular to rotated axis. This reveals that the anisotropy introduced during the deformation cycles appears in directions [110] and [1?0], tilted 45° with respect to the direction of the applied shear. To analyze the subtle structural change we systematically computed the positions and widths of the dPDF peaks on the rotated directions, thence allowing us to describe in detail the different signatures of anisotropy induced by deformation in the metallic glasses.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-05-05
2018
2018-04-26
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/116748
https://dx.doi.org/10.1016/j.jallcom.2018.01.370
url https://hdl.handle.net/2117/116748
https://dx.doi.org/10.1016/j.jallcom.2018.01.370
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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