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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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Ahmed, Shahroz
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Effect of Cooling Practice on the Mechanical Properties of Medium-Manganese Aluminum-Alloyed Steels after Intercritical Annealing Quench and Partition Treatmentcitations
- 2023The effect of scrap originating trace elements on the properties of low alloyed steelscitations
- 2023Effects of strain rate and adiabatic heating on mechanical behavior of medium manganese Q&P steelscitations
- 2022Quenching and partitioning response of vanadium microalloyed TRIP-assisted steel
- 2022Occurrence of dynamic strain aging in intercritically annealed low carbon high aluminum medium manganese steelscitations
- 2022Directed energy deposition of AA7075 - effect of TiC nanoparticles on microstructurecitations
- 2022Directed energy deposition of AA7075 - effect of TiC nanoparticles on microstructurecitations
- 2022Dynamic strain aging in multiphase steels
- 2020Processing map for controlling microstructure and unraveling various deformation mechanisms during hot working of CoCrFeMnNi high entropy alloycitations
- 2019Hardfaced wear resistant coatings for mining tools
Places of action
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article
Directed energy deposition of AA7075 - effect of TiC nanoparticles on microstructure
Abstract
AA7075 alloy is a high-strength aluminum alloy with properties enhanced by heat treatments. However, like most high-strength aluminum alloys, AA7075 is non-weldable, as it suffers from hot cracking when it is welded or additively manufactured with fusion techniques. A proposed way to reduce the hot cracking tendency is by refining the microstructure by adding nucleation enhancers. In this study, AA7075 powder feedstock was functionalized with 1.7 and 3.4 vol.% TiC nanoparticles, printed with laser-directed energy deposition (DED), subjected to T6 heat treatment, and characterized with optical and electron microscopy, electron backscatter diffraction (EBSD), and hardness measurements. Although TiC was not homogeneously distributed in the aluminum matrix, the addition of TiC successfully suppressed hot cracking by inhibiting dendritic growth produced by increased and more uniform nucleation, which resulted in refined equiaxed grains, and thus enhanced the printability of the material.