| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Orozco-Caballero, Alberto
Universidad Politécnica de Madrid
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2025Twin nucleation at grain boundaries in Mg analyzed through in situ electron backscatter diffraction and high-resolution digital image correlationcitations
- 2023Accurate determination of active slip systems for improved geometrical criteria of basal-to-basal slip transfer at grain boundaries in pure Mgcitations
- 2020High Strain Rate Superplasticity of WE54 Mg Alloy after Severe Friction Stir Processingcitations
- 2018Back-stresses and geometrical hardening as competing mechanisms enhancing ductility in HCP metalscitations
- 2018Back-stresses and geometrical hardening as competing mechanisms enhancing ductility in HCP metalscitations
- 2018Enabling high resolution strain mapping in zirconium alloyscitations
- 2018Enabling high resolution strain mapping in zirconium alloyscitations
- 2018On the ductility of alpha titanium: The effect of temperature and deformation modecitations
- 2018On the ductility of alpha titanium: The effect of temperature and deformation modecitations
- 2017Grain size versus microstructural stability in the high strain rate superplastic response of a severely friction stir processed Al-Zn-Mg-Cu alloycitations
- 2017Influence of Grain Coarsening on the Creep Parameters During the Superplastic Deformation of a Severely Friction Stir Processed Al-Zn-Mg-Cu Alloycitations
- 2017How magnesium accommodates local deformation incompatibility: a high-resolution digital image correlation studycitations
- 2017Evaluation of the mechanical anisotropy and the deformation mechanism in a multi-pass friction stir processed Al-Zn-Mg-Cu alloycitations
- 2016Strategy for severe friction stir processing to obtain acute grain refinement of an Al-Zn-Mg-Cu alloy in three initial precipitation statescitations
Places of action
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article
High Strain Rate Superplasticity of WE54 Mg Alloy after Severe Friction Stir Processing
Abstract
Friction stir processing (FSP) was used on coarse-grained WE54 magnesium alloy plates of as-received material. These were subjected to FSP under two different cooling conditions, refrigerated and non-refrigerated, and different severe processing conditions characterized by low rotation rate and high traverse speed. After FSP, ultrafine equiaxed grains and refinement of the coarse precipitates were observed. The processed materials exhibited high resistance at room temperature and excellent superplasticity at the high strain rate of 10<sup>−2</sup> s<sup>−1</sup> and temperatures between 300 and 400 °C. Maximum tensile superplastic elongation of 726% was achieved at 400 °C. Beyond 400 °C, a noticeable loss of superplastic response occurred due to a loss of thermal stability of the grain size. Grain boundary sliding is the operative deformation mechanism that can explain the high-temperature flow behavior of the ultrafine grained FSP-WE54 alloy, showing increasing superplasticity with increasing processing severity.