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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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Lipińska, Marta
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Thermal cycling effects on the local microstructure and mechanical properties in wire-based directed energy deposition of nickel-based superalloycitations
- 2023Application of electron beam welding technique for joining coarse-grained and ultrafine-grained plates from Al-Mg-Si alloycitations
- 2018A new hybrid process to produce ultrafine grained aluminium platescitations
- 2017Ultrafine-Grained Plates of Al-Mg-Si Alloy Obtained by Incremental Equal Channel Angular Pressing: Microstructure and Mechanical Propertiescitations
- 2017Microstructure and Corrosion Behavior of the Friction Stir Welded Joints Made from Ultrafine Grained Aluminumcitations
- 2016Incremental ECAP as a method to produce ultrafine grained aluminium platescitations
- 2016Characterization of Microstructure and Mechanical Properties of 1350 Aluminium Alloy Processed by Equal-Channel Angular Pressing with Parallel Channels
- 2016The influence of severe plastic deformation processes on electrical conductivity of commercially pure aluminium and 5483 aluminium alloycitations
- 2015Influence of grain size on the corrosion resistance of aluminium alloy Al 6060
- 2015Microstructure evolution in aluminium 6060 during Incremental ECAP
- 2015Efficient method of producing ultrafine grained non-ferrous metals
- 2015Microstructure and mechanical properties of friction stir welded joints made from ultrafine grained aluminium 1050citations
- 2014Incremental ECAP as a novel tool for producing ultrafine grained aluminium platescitations
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article
Ultrafine-Grained Plates of Al-Mg-Si Alloy Obtained by Incremental Equal Channel Angular Pressing: Microstructure and Mechanical Properties
Abstract
In this study, an Al-Mg-Si alloy was processed using via incremental equal channel angularpressing (I-ECAP) in order to obtain homogenous, ultrafine-grained plates with low anisotropyof the mechanical properties. This was the first attempt to process an Al-Mg-Si alloy using thistechnique. Samples in the form of 3 mm-thick square plates were subjected to I-ECAP with the90 deg rotation around the axis normal to the surface of the plate between passes. Samples wereinvestigated first in their initial state, then after a single pass of I-ECAP, and finally after foursuch passes. Analyses of the microstructure and mechanical properties demonstrated that theI-ECAP method can be successfully applied in Al-Mg-Si alloys. The average grain size decreasedfrom 15 to 19 lm in the initial state to below 1 lm after four I-ECAP passes. The fraction ofhigh-angle grain boundaries in the sample subjected to four I-ECAP passes lay within 53 to57 pct depending on the examined plane. The mechanism of grain refinement in Al-Mg-Si alloywas found to be distinctly different from that in pure aluminum with the grain rotation beingmore prominent than the grain subdivision, which was attributed to lower stacking fault energyand the reduced mobility of dislocations in the alloy. The ultimate tensile strength increasedmore than twice, whereas the yield strength was more than threefold. Additionally, the platesprocessed by I-ECAP exhibited low anisotropy of mechanical properties (in plane and across thethickness) in comparison to other SPD processing methods, which makes them attractive forfurther processing and applications.