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Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass
dc.contributor.author | Liu, Chaoren |
dc.contributor.author | Pineda Soler, Eloi |
dc.contributor.author | Crespo Artiaga, Daniel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2016-03-16T15:39:12Z |
dc.date.available | 2017-09-15T00:30:20Z |
dc.date.issued | 2015-09-15 |
dc.identifier.citation | Liu, C., Pineda, E., Crespo, D. Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass. "Journal of alloys and compounds", 15 Setembre 2015, vol. 643, núm. S1, p. S17-S21. |
dc.identifier.issn | 0925-8388 |
dc.identifier.uri | http://hdl.handle.net/2117/84527 |
dc.description.abstract | 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. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Metallic glasses |
dc.subject.other | Amorphous alloys |
dc.subject.other | Aging |
dc.subject.other | Johari-Goldstein relaxation |
dc.subject.other | Mechanical spectroscopy |
dc.subject.other | Glass dynamics |
dc.subject.other | JOHARI-GOLDSTEIN RELAXATION |
dc.subject.other | STRUCTURAL RELAXATION |
dc.subject.other | THERMAL-STABILITY |
dc.subject.other | BETA-RELAXATION |
dc.subject.other | TEMPERATURE |
dc.subject.other | VISCOSITY |
dc.subject.other | LIQUIDS |
dc.subject.other | PLASTICITY |
dc.subject.other | TRANSITION |
dc.subject.other | DYNAMICS |
dc.title | Characterization of mechanical relaxation in a Cu-Zr-Al metallic glass |
dc.type | Article |
dc.subject.lemac | Vidres metàl·lics |
dc.contributor.group | Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
dc.identifier.doi | 10.1016/j.jallcom.2014.10.101 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 16842514 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Liu, C.; Pineda, E.; Crespo, D. |
local.citation.publicationName | Journal of alloys and compounds |
local.citation.volume | 643 |
local.citation.number | S1 |
local.citation.startingPage | S17 |
local.citation.endingPage | S21 |
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