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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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Topolski, Krzysztof
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2020High-strength ultrafine-grained titanium 99.99 manufactured by large strain plastic workingcitations
- 2020A Novel Rolling Approach to Refining the Microstructure and Enhancing the Mechanical Strength of Pure Aluminiumcitations
- 2020Biological properties of a novel β-Ti alloy with a low young’s modulus subjected to cold rollingcitations
- 2019Functional properties of the novel hybrid coatings combined of the oxide and DLC layer as a protective coating for AZ91E magnesium alloycitations
- 2012High cycle fatigue strength of hydrostatically extruded nanocrystalline CP titanium
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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.