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dc.contributor.authorRojas Gregorio, José Ignacio
dc.contributor.authorAguiar, Albert
dc.contributor.authorCrespo Artiaga, Daniel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor.otherEscola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels
dc.date.accessioned2012-01-17T16:34:53Z
dc.date.available2012-01-17T16:34:53Z
dc.date.created2011-06-24
dc.date.issued2011-06-24
dc.identifier.citationRojas, J.; Aguiar, A.; Crespo, D. Effect of temperature and frequency of dynamic loading in the viscoelastic properties of aluminium alloy 7075-T6. "Physica status solidi C. Current topics in solid state physics", 24 Juny 2011, vol. 8, núm. 11-12, p. 3111-3114.
dc.identifier.issn1862-6351
dc.identifier.urihttp://hdl.handle.net/2117/14607
dc.description.abstractThe viscoelastic response of a material offers an alternative method for analyzing its microstructure, phase transformations and fatigue behaviour. In this work, the viscoelastic properties of commercial aluminium alloy (AA) 7075-T6 are studied with a Dynamic-Mechanical Analyzer (DMA), and results are combined with Transmission Electron Microscopy (TEM) and Differential Scanning Calorimetry (DSC) data. In accordance with this analysis, we propose an analytical model for the storage modulus E’ as a function of temperature, frequency of the dynamic loading and the concentration of Guinier- Preston Zones (GPZ). The latter parameter is obtained as a function of temperature after integration and fitting of the model. It is shown that the proposed model fits the experimental data for the storage modulus reasonably well in the prescribed region, and that this fact supports the hypothesis that the change in the storage modulus slope at about 130-160 ºC is due to GPZ decomposition
dc.format.extent4 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshViscoelasticity
dc.subject.lcshAluminum alloys
dc.subject.otherAA 7075
dc.subject.otherAluminium alloy
dc.subject.otherGPZ
dc.subject.otherMicrostructure
dc.subject.otherPhase transformations
dc.subject.otherStorage modulus
dc.subject.otherViscoelasticity
dc.titleEffect of temperature and frequency of dynamic loading in the viscoelastic properties of aluminium alloy 7075-T6
dc.typeArticle
dc.subject.lemacAlumini -- Aliatges
dc.contributor.groupUniversitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.identifier.doi10.1002/pssc.201000732
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/pssc.201000732/abstract
dc.rights.accessOpen Access
drac.iddocument5978390
dc.description.versionPostprint (published version)
upcommons.citation.authorRojas, J.; Aguiar, A.; Crespo, D.
upcommons.citation.publishedtrue
upcommons.citation.publicationNamePhysica status solidi C. Current topics in solid state physics
upcommons.citation.volume8
upcommons.citation.number11-12
upcommons.citation.startingPage3111
upcommons.citation.endingPage3114


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