@article{SerranoMunozFernandezSerranoSaliwanNeumannetal.2022,
  author    = {Serrano-Munoz, Itziar and Fern{\´a}ndez Serrano, Ricardo and Saliwan-Neumann, Romeo and Gonzalez-Doncel, Gaspar and Bruno, Giovanni},
  title     = {Dislocation substructures in pure aluminium after creep deformation as studied by electron backscatter diffraction},
  series = {Journal of applied crystallography / International Union of Crystallography},
  volume    = {55},
  journal   = {Journal of applied crystallography / International Union of Crystallography},
  publisher = {Munksgaard},
  address   = {Copenhagen},
  issn      = {1600-5767},
  doi       = {10.1107/S1600576722005209},
  pages     = {860 -- 869},
  year      = {2022},
  abstract  = {In the present work, electron backscatter diffraction was used to determine the microscopic dislocation structures generated during creep (with tests interrupted at the steady state) in pure 99.8\% aluminium. This material was investigated at two different stress levels, corresponding to the power-law and power-law breakdown regimes. The results show that the formation of subgrain cellular structures occurs independently of the crystallographic orientation. However, the density of these cellular structures strongly depends on the grain crystallographic orientation with respect to the tensile axis direction, with (111) grains exhibiting the highest densities at both stress levels. It is proposed that this behaviour is due to the influence of intergranular stresses, which is different in (111) and (001) grains.},
  language  = {en}
}
@article{FernandezGonzalezDoncelGarcesetal.2020,
  author    = {Fernandez, Ricardo and Gonzalez-Doncel, Gaspar and Garces, Gerardo and Bruno, Giovanni},
  title     = {Towards a comprehensive understanding of creep},
  series = {Materials science \& engineering. A, Structural materials: properties, microstructure and processing},
  volume    = {776},
  journal   = {Materials science \& engineering. A, Structural materials: properties, microstructure and processing},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {0921-5093},
  doi       = {10.1016/j.msea.2020.139036},
  pages     = {7},
  year      = {2020},
  abstract  = {We show that the equation proposed by Takeuchi and Argon to explain the creep behavior of Al-Mg solid solution can be used to describe also the creep behavior of pure aluminum. In this frame, it is possible to avoid the use of the classic pre-exponential fitting parameter in the power law equation to predict the minimum creep strain rate. The effect of the fractal arrangement of dislocations, developed at the mesoscale, must be considered to fully explain the experimental data. These ideas allow improving the recently introduced SSTC model, fully describing the primary and secondary creep regimes of aluminum alloys without the need for fitting. Creep data from commercially pure A199.8\% and Al-Mg alloys tested at different temperatures and stresses are used to validate the proposed ideas.},
  language  = {en}
}
@article{CabezaMuellerPereyraetal.2018,
  author    = {Cabeza, Sandra and M{\"u}ller, Bernd R. and Pereyra, Ricio and Fernandez, Ricardo and Gonzalez-Doncel, Gaspar and Bruno, Giovanni},
  title     = {Evidence of damage evolution during creep of Al-Mg alloy using synchrotron X-ray refraction},
  series = {Journal of applied crystallography},
  volume    = {51},
  journal   = {Journal of applied crystallography},
  publisher = {International Union of Crystallography},
  address   = {Chester},
  issn      = {1600-5767},
  doi       = {10.1107/S1600576718001449},
  pages     = {420 -- 427},
  year      = {2018},
  abstract  = {In order to provide further evidence of damage mechanisms predicted by the recent solid-state transformation creep (SSTC) model, direct observation of damage accumulation during creep of Al-3.85Mg was made using synchrotron X-ray refraction. X-ray refraction techniques detect the internal specific surface (i.e. surface per unit volume) on a length scale comparable to the specimen size, but with microscopic sensitivity. A significant rise in the internal specific surface with increasing creep time was observed, providing evidence for the creation of a fine grain substructure, as predicted by the SSTC model. This substructure was also observed by scanning electron microscopy.},
  language  = {en}
}