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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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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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| Kočí, Jan | Prague |
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| Azam, Siraj |
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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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Hütter, Andreas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Manufacturing of coarse and ultrafine-grained aluminum matrix composites reinforced with Al2O3 nanoparticles via friction stir processingcitations
- 2020Similar and dissimilar welds of ultrafine grained aluminium obtained by friction stir weldingcitations
- 2016Effect of Friction Stir Welding on Microstructure and Properties of Micro-TiO_2 doped HSLA Steel
- 2015Surface Modification of pure magnesium and magnesium alloy AZ91 by Friction Stir Processingcitations
- 2014Friction stir welding of aluminum metal matrix composite containers for electric componentscitations
- 2013Study of Physical and Mechanical Properties of Aluminum 6092/SiC_25p/t6 friction Stir Welded Platecitations
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article
Similar and dissimilar welds of ultrafine grained aluminium obtained by friction stir welding
Abstract
Samples from commercially pure aluminium were subjected to various number of passes of Incremental EqualChannel Angular Pressing (I-ECAP) and subsequently welded using Friction Stir Welding (FSW). Similar anddissimilar welds were obtained and investigated in terms of their microstructure and mechanical properties. Inthe case of similar weld from coarse grained aluminium in the stir zone a decreased average grain size wasobtained, which resulted in enhanced microhardness. In the case of samples after I-ECAP, the ultrafine grainedregime has not been preserved, which caused a drop in microhardness in the stir zone. Nevertheless, obtainedresults were still higher than those for coarse grained sample. In all welds the average grain size of 2.1–3.7 μmwas obtained. No correlation between the microstructure of base material and stir zone has been found. Tensiletests revealed, that the localization of deformation was obtained in each weld in the area of the biggest averagegrain size. For dissimilar welds from deformed and undeformed samples a gradient change in microstructure andmicrohardness was obtained on the cross-section of the welds.