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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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Orłowska, Marta
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Influence of process and heat input on the microstructure and mechanical properties in wire arc additive manufacturing of hot work tool steelscitations
- 2022Increasing the Mechanical Strength and Corrosion Resistance of Aluminum Alloy 7075 via Hydrostatic Extrusion and Agingcitations
- 2022The Influence of Heat Treatment on the Mechanical Properties and Corrosion Resistance of the Ultrafine-Grained AA7075 Obtained by Hydrostatic Extrusioncitations
- 2021Effect of microstructural features on the corrosion behavior of severely deformed Al–Mg–Si alloycitations
- 2020A Novel Rolling Approach to Refining the Microstructure and Enhancing the Mechanical Strength of Pure Aluminiumcitations
- 2020Similar and dissimilar welds of ultrafine grained aluminium obtained by friction stir weldingcitations
- 2019The effect of grain size and grain boundary misorientation on the corrosion resistance of commercially pure aluminiumcitations
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article
A Novel Rolling Approach to Refining the Microstructure and Enhancing the Mechanical Strength of Pure Aluminium
Abstract
In the present study, a novel rolling method is proposed, which is called Multi-Rotational FlatRolling (MRFR). The novelty of this work is the application of this special method of flatrolling to severely deform metal. The rolling is performed so as to preserve the square shape ofthe transverse section of the sample. During the process, the transverse-sectional area of theworkpiece is gradually reduced, while the sample length is simultaneously increased. Theexperiment was carried out on commercially pure aluminium. An annealed sample wassubjected MRFR up to the attainment of a maximum fourfold reduction in the transverse-sectionalarea. A microstructure analysis showed that the process resulted in a material having arefined microstructure of less than 1 lm. Nevertheless, the majority of the grain boundaries(over 70 pct) were of the low-angle type. As a result of the grain refinement and the increase indislocation density, a clear improvement in the strength of the deformed material was observed.The increase in yield stress was 157 pct, the increase in ultimate tensile strength was about 56pct, while the decrease in the value of elongation to failure was 12.8 pct.