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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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Karnthaler, H. P.
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Publications (4/4 displayed)
- 2018Anomalous re-ordering of Fe3Al disordered by high pressure torsion deformationcitations
- 2017Reordering a deformation disordered intermetallic compound by antiphase boundary movementcitations
- 2017Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glasscitations
- 2015Unexpected grain size reduction by heating in bulk nanocrystalline FeAlcitations
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article
Anomalous re-ordering of Fe3Al disordered by high pressure torsion deformation
Abstract
<p>Severe plastic deformation of bulk DO<sub>3</sub> ordered Fe-30 at.%Al was carried out using high pressure torsion to make a chemically disordered nanocrystalline alloy. To achieve re-ordering the alloy was heated to 250, 370 and 500 °C. Transmission electron microscopy investigations reveal that in contrast to the phase diagram B2 ordering occurs at low temperatures. Upon further heating, after the B2 order is already well restored, nanosized DO<sub>3</sub> ordered domains grow within large B2 ordered regions. It is proposed that the anomalous re-ordering is triggered by deformation-induced vacancies and other defects leading to the formation of the high-temperature B2 ordered phase.</p>