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Effect of temperature and frequency of dynamic loading in the viscoelastic properties of aluminium alloy 7075-T6
| dc.contributor.author | Rojas Gregorio, José Ignacio |
| dc.contributor.author | Aguiar, Albert |
| dc.contributor.author | Crespo Artiaga, Daniel |
| dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física Aplicada |
| dc.contributor.other | Escola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels |
| dc.date.accessioned | 2012-01-17T16:34:53Z |
| dc.date.available | 2012-01-17T16:34:53Z |
| dc.date.created | 2011-06-24 |
| dc.date.issued | 2011-06-24 |
| dc.identifier.citation | Rojas, 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.issn | 1862-6351 |
| dc.identifier.uri | http://hdl.handle.net/2117/14607 |
| dc.description.abstract | The 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.extent | 4 p. |
| dc.language.iso | eng |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
| dc.subject.lcsh | Viscoelasticity |
| dc.subject.lcsh | Aluminum alloys |
| dc.subject.other | AA 7075 |
| dc.subject.other | Aluminium alloy |
| dc.subject.other | GPZ |
| dc.subject.other | Microstructure |
| dc.subject.other | Phase transformations |
| dc.subject.other | Storage modulus |
| dc.subject.other | Viscoelasticity |
| dc.title | Effect of temperature and frequency of dynamic loading in the viscoelastic properties of aluminium alloy 7075-T6 |
| dc.type | Article |
| dc.subject.lemac | Alumini -- Aliatges |
| dc.contributor.group | Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
| dc.identifier.doi | 10.1002/pssc.201000732 |
| dc.relation.publisherversion | http://onlinelibrary.wiley.com/doi/10.1002/pssc.201000732/abstract |
| dc.rights.access | Open Access |
| local.identifier.drac | 5978390 |
| dc.description.version | Postprint (published version) |
| local.citation.author | Rojas, J.; Aguiar, A.; Crespo, D. |
| local.citation.publicationName | Physica status solidi C. Current topics in solid state physics |
| local.citation.volume | 8 |
| local.citation.number | 11-12 |
| local.citation.startingPage | 3111 |
| local.citation.endingPage | 3114 |
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