Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass

The temperature dependence of the relaxation times of Cu46Zr46Al8 glass was measured by means of mechanical spectroscopy and static stress-relaxation measurements. The weak intensity of secondary relaxation in this alloy allows us to correlate the characteristic times of dynamic and static measureme...

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Detalles Bibliográficos
Autores: Liu, Chaoren, Pineda Soler, Eloi|||0000-0002-1871-3848, Crespo Artiaga, Daniel|||0000-0003-1743-2400
Tipo de recurso: artículo
Fecha de publicación:2015
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:2117/84527
Acceso en línea:https://hdl.handle.net/2117/84527
https://dx.doi.org/10.1016/j.jallcom.2014.10.101
Access Level:acceso abierto
Palabra clave:Metallic glasses
Amorphous alloys
Aging
Johari-Goldstein relaxation
Mechanical spectroscopy
Glass dynamics
JOHARI-GOLDSTEIN RELAXATION
STRUCTURAL RELAXATION
THERMAL-STABILITY
BETA-RELAXATION
TEMPERATURE
VISCOSITY
LIQUIDS
PLASTICITY
TRANSITION
DYNAMICS
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
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spelling Characterization of mechanical relaxation in a Cu-Zr-Al metallic glassLiu, ChaorenPineda Soler, Eloi|||0000-0002-1871-3848Crespo Artiaga, Daniel|||0000-0003-1743-2400Metallic glassesAmorphous alloysAgingJohari-Goldstein relaxationMechanical spectroscopyGlass dynamicsJOHARI-GOLDSTEIN RELAXATIONSTRUCTURAL RELAXATIONTHERMAL-STABILITYBETA-RELAXATIONTEMPERATUREVISCOSITYLIQUIDSPLASTICITYTRANSITIONDYNAMICSVidres metàl·licsÀrees temàtiques de la UPC::FísicaThe temperature dependence of the relaxation times of Cu46Zr46Al8 glass was measured by means of mechanical spectroscopy and static stress-relaxation measurements. The weak intensity of secondary relaxation in this alloy allows us to correlate the characteristic times of dynamic and static measurements of primary relaxation. The glassy dynamics of an isoconfigurational state are found to follow an Adam-Gibbs-Vogel expression with the glassy state defined by a fictive temperature. The combination of both measurements proves that, in the frequency domain, the relaxation response can be well described by a single relaxation function above and below the glass transition. The change in relaxation times as function of the fictive temperature and the corresponding effects on the mechanical behavior are estimated and discussed. (C) 2014 Elsevier B.V. All rights reserved.Peer Reviewed20152015-09-1520162016-03-16journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/84527https://dx.doi.org/10.1016/j.jallcom.2014.10.101reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/845272026-05-27T15:37:01Z
dc.title.none.fl_str_mv Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
title Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
spellingShingle Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
Liu, Chaoren
Metallic glasses
Amorphous alloys
Aging
Johari-Goldstein relaxation
Mechanical spectroscopy
Glass dynamics
JOHARI-GOLDSTEIN RELAXATION
STRUCTURAL RELAXATION
THERMAL-STABILITY
BETA-RELAXATION
TEMPERATURE
VISCOSITY
LIQUIDS
PLASTICITY
TRANSITION
DYNAMICS
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
title_short Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
title_full Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
title_fullStr Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
title_full_unstemmed Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
title_sort Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
dc.creator.none.fl_str_mv Liu, Chaoren
Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author Liu, Chaoren
author_facet Liu, Chaoren
Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author_role author
author2 Pineda Soler, Eloi|||0000-0002-1871-3848
Crespo Artiaga, Daniel|||0000-0003-1743-2400
author2_role author
author
dc.subject.none.fl_str_mv Metallic glasses
Amorphous alloys
Aging
Johari-Goldstein relaxation
Mechanical spectroscopy
Glass dynamics
JOHARI-GOLDSTEIN RELAXATION
STRUCTURAL RELAXATION
THERMAL-STABILITY
BETA-RELAXATION
TEMPERATURE
VISCOSITY
LIQUIDS
PLASTICITY
TRANSITION
DYNAMICS
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
topic Metallic glasses
Amorphous alloys
Aging
Johari-Goldstein relaxation
Mechanical spectroscopy
Glass dynamics
JOHARI-GOLDSTEIN RELAXATION
STRUCTURAL RELAXATION
THERMAL-STABILITY
BETA-RELAXATION
TEMPERATURE
VISCOSITY
LIQUIDS
PLASTICITY
TRANSITION
DYNAMICS
Vidres metàl·lics
Àrees temàtiques de la UPC::Física
description The temperature dependence of the relaxation times of Cu46Zr46Al8 glass was measured by means of mechanical spectroscopy and static stress-relaxation measurements. The weak intensity of secondary relaxation in this alloy allows us to correlate the characteristic times of dynamic and static measurements of primary relaxation. The glassy dynamics of an isoconfigurational state are found to follow an Adam-Gibbs-Vogel expression with the glassy state defined by a fictive temperature. The combination of both measurements proves that, in the frequency domain, the relaxation response can be well described by a single relaxation function above and below the glass transition. The change in relaxation times as function of the fictive temperature and the corresponding effects on the mechanical behavior are estimated and discussed. (C) 2014 Elsevier B.V. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-09-15
2016
2016-03-16
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/2117/84527
https://dx.doi.org/10.1016/j.jallcom.2014.10.101
url https://hdl.handle.net/2117/84527
https://dx.doi.org/10.1016/j.jallcom.2014.10.101
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

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

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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score 15.300724

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