Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass

The stress relaxation dynamics of a La60Ni15Al25 metallic glass were studied in ribbon and bulk samples. In both tensile and single cantilever testing modes, it is observed that the stress decay of deep glass is mediated by the ß relaxation, which contributes about 5% to the total stress. The charac...

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Detalles Bibliográficos
Autores: Hao, Qi, Pineda Soler, Eloi|||0000-0002-1871-3848, Wang, Yun-Jiang, Yang, Yong, Qiao, Jichao
Tipo de recurso: artículo
Fecha de publicación:2023
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:2117/402803
Acceso en línea:https://hdl.handle.net/2117/402803
https://dx.doi.org/10.1103/PhysRevB.108.024101
Access Level:acceso abierto
Palabra clave:Metallic glasses
Mechanical deformation
Stress
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
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spelling Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glassHao, QiPineda Soler, Eloi|||0000-0002-1871-3848Wang, Yun-JiangYang, YongQiao, JichaoMetallic glassesMetallic glassesMechanical deformationStressVidres metàl·licsÀrees temàtiques de la UPC::FísicaThe stress relaxation dynamics of a La60Ni15Al25 metallic glass were studied in ribbon and bulk samples. In both tensile and single cantilever testing modes, it is observed that the stress decay of deep glass is mediated by the ß relaxation, which contributes about 5% to the total stress. The characteristic time of stress relaxation near the glass transition coincides with that of the a relaxation, indicating that the two-step stress decay may correspond directly to the two dynamic relaxations. A possible atomic mechanism involving both relaxation and deformation is proposed based on the evolution of shear transition zone, which enables reconstruction of the two-step deformation theoretically. The present experimental and theoretical protocol further provides a strategy to detect the ß relaxation associated phenomena at room temperature and even lower, circumventing interference from physical aging or the a relaxation. These findings clarify the elusive roles of relaxation modes in the nonelastic deformation of amorphous matters and reveal the interrelationships between them.Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i InfraestructuraObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura::9.5 - Augmentar la investigació científica i millorar la capacitat tecnològica dels sectors industrials de tots els països, en particular els països en desenvolupament, entre d’altres maneres fomentant la innovació i augmentant substancialment, d’aquí al 2030, el nombre de persones que treballen en el camp de la investigació i el desenvolupa­ment per cada milió d’habitants, així com la despesa en investigació i desenvolupament dels sectors públic i privatAmerican Physical Society (APS)20232023-07-1120242024-02-22journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/402803https://dx.doi.org/10.1103/PhysRevB.108.024101reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4028032026-05-27T15:37:01Z
dc.title.none.fl_str_mv Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
title Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
spellingShingle Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
Hao, Qi
Metallic glasses
Metallic glasses
Mechanical deformation
Stress
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
title_short Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
title_full Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
title_fullStr Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
title_full_unstemmed Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
title_sort Reversible anelastic deformation mediated by beta relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass
dc.creator.none.fl_str_mv Hao, Qi
Pineda Soler, Eloi|||0000-0002-1871-3848
Wang, Yun-Jiang
Yang, Yong
Qiao, Jichao
author Hao, Qi
author_facet Hao, Qi
Pineda Soler, Eloi|||0000-0002-1871-3848
Wang, Yun-Jiang
Yang, Yong
Qiao, Jichao
author_role author
author2 Pineda Soler, Eloi|||0000-0002-1871-3848
Wang, Yun-Jiang
Yang, Yong
Qiao, Jichao
author2_role author
author
author
author
dc.subject.none.fl_str_mv Metallic glasses
Metallic glasses
Mechanical deformation
Stress
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
topic Metallic glasses
Metallic glasses
Mechanical deformation
Stress
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
description The stress relaxation dynamics of a La60Ni15Al25 metallic glass were studied in ribbon and bulk samples. In both tensile and single cantilever testing modes, it is observed that the stress decay of deep glass is mediated by the ß relaxation, which contributes about 5% to the total stress. The characteristic time of stress relaxation near the glass transition coincides with that of the a relaxation, indicating that the two-step stress decay may correspond directly to the two dynamic relaxations. A possible atomic mechanism involving both relaxation and deformation is proposed based on the evolution of shear transition zone, which enables reconstruction of the two-step deformation theoretically. The present experimental and theoretical protocol further provides a strategy to detect the ß relaxation associated phenomena at room temperature and even lower, circumventing interference from physical aging or the a relaxation. These findings clarify the elusive roles of relaxation modes in the nonelastic deformation of amorphous matters and reveal the interrelationships between them.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-07-11
2024
2024-02-22
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/402803
https://dx.doi.org/10.1103/PhysRevB.108.024101
url https://hdl.handle.net/2117/402803
https://dx.doi.org/10.1103/PhysRevB.108.024101
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-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
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-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society (APS)
publisher.none.fl_str_mv American Physical Society (APS)
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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score 15.300724

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