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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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Letofsky-Papst, Ilse
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Microstructure and Mechanical Properties of Ti-6Al-4V In Situ Alloyed with 3 wt% Cr by Laser Powder Bed Fusion
- 2024Advancements in metal additive manufacturingcitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr$_{0.69}$Ta$_{0.20}$B$_{0.11}$N coating
- 20232D and 3D STEM Imaging and Spectroscopy: Applications and Perspectives in View of Novel STEM Infrastructure
- 2023Microstructure of a modulated Ti-6Al-4V – Cu alloy fabricated via in situ alloying in laser powder bed fusioncitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr<sub>0.69</sub>Ta<sub>0.20</sub>B<sub>0.11</sub>N coating
- 2022Unique microstructure evolution of a novel Ti-modified Al-Cu alloy processed using laser powder bed fusioncitations
- 2022Crack-free in situ heat-treated high-alloy tool steel processed via laser powder bed fusion: microstructure and mechanical propertiescitations
- 2021Laser powder bed fusion of nano-CaB6 decorated 2024 aluminum alloycitations
- 2021A novel nZVI–bentonite nanocomposite to remove trichloroethene (TCE) from solutioncitations
- 2020The effect of oxygen and carbon on molybdenum in Laser Powder Bed Fusion
- 2020Microstructural evolution of metallurgical coke: Evidence from Raman spectroscopycitations
- 2019Novel highly active carbon supported ternary PdNiBi nanoparticles as anode catalyst for the alkaline direct ethanol fuel cellcitations
- 2016Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions
- 2014Order vs. disorder — a huge increase in ionic conductivity of nanocrystalline LiAlO2 embedded in an amorphous-like matrix of lithium aluminatecitations
- 2012Application of elemental microanalysis to elucidate the role of spherites in the digestive gland of the helicid snail Chilostoma lefeburiana
- 2008δ-phase characterization of superalloy Allvac 718 Plus™
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article
Laser powder bed fusion of nano-CaB6 decorated 2024 aluminum alloy
Abstract
<p>The 2024 aluminum alloy (Al-Cu-Mg) is widely used in aerospace; however, due to its solidification-cracking tendency, its processability using laser powder bed fusion (LPBF) remains a critical issue. The addition of 2 wt% CaB<sub>6</sub> nanoparticles induces a columnar-to-equiaxed transition (CET), resulting in an immediate improvement in LPBF processability. High-density (>99.5%) and crack-free specimens, with a homogeneous equiaxed microstructure and without preferred grain orientation, were obtained. The small average α-Al grain size of 0.91 ± 0.32 µm is attributed to the similar lattice constants of Al and CaB<sub>6</sub> facilitating Al nucleation on CaB<sub>6</sub> nanoparticles, resulting in a highly coherent Al/CaB<sub>6</sub> interface. CaB<sub>6</sub> nanoparticles act as heterogeneous nucleus and exert a pinning force on the grain boundaries, which reduces grain coarsening. The as-built specimens exhibit both high-yield strength (348 ± 16 MPa) and high-tensile strength (391 ± 22 MPa), combined with a high total elongation at break (12.6 ± 0.6%). The macro hardness amounts to 132 ± 4 HV<sub>5</sub>.</p>