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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Gubicza, J.
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Publications (5/5 displayed)
- 2019Type and density of dislocations in a plastically deformed long-period stacking ordered magnesium alloycitations
- 2015Solute redistribution during annealing of a cold rolled Cu-Ag alloycitations
- 2015The effect of thermomechanical treatment on the microstructure and the mechanical behavior of a supersaturated Cu-Ag alloycitations
- 2014Microstructure evolution during annealing of an SPD- processed supersaturated Cu-3 at.% Ag alloycitations
- 2013High strength and ductile ultrafine-grained Cu-Ag alloy through bimodal grain size, dislocation density and solute distributioncitations
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article
Type and density of dislocations in a plastically deformed long-period stacking ordered magnesium alloy
Abstract
The density and type of dislocations were studied in a plastically deformed long-period stacking ordered (LPSO) phase of a MgYZn (at.%) alloy. The volume fraction of the LPSO phase was as high as ∼85%. The plastic deformation was carried out by uniaxial compression up to the strain of ∼25% in both as-cast and extruded states. The order of magnitude of the dislocation density was ∼10 m after compression to the strain of ∼25% for both as-cast and extruded materials. It was also found that most of the dislocations formed in the LPSO phase during extrusion and compression were of -type. The as-cast sample did not exhibit a strong crystallographic texture, but extrusion caused a texture in which the normal vector of the basal plane was perpendicular to the extrusion axis. The texture developed during extrusion yielded an anisotropic evolution of the dislocation density during subsequent compression. Namely, the density of dislocations developed during compression was lower when the deformation was carried out parallel to the extrusion axis. ; The authors thank Prof. M. Leoni (University of Trento) for his help and providing the PM2K software. This work was financed partly by the Ministry of Human Capacities of Hungary within the ELTE University Excellence program (1783-3/2018/FEKUTSRAT). Authors would like to acknowledge financial support the Czech Grant Agency under grant Nr. 16-12075S. ; Peer Reviewed