| People | Locations | Statistics |
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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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Hannard, Florent
Université Catholique de Louvain
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Development of a high strength liquid assisted healable modified AlMg alloy produced by additive manufacturing
- 2023Development of a high strength liquid assisted healable modified AlMg alloy produced by additive manufacturing
- 2023On the competition between intergranular and transgranular failure within 7xxx AI alloys with tailored microstructurescitations
- 2023On the Competition between Intergranular and Transgranular Failure within 7xxx Al Alloys with Tailored Microstructurescitations
- 2023Development of a new healable aluminium alloy produced by Laser Powder Bed Fusion (LPBF) and improvement of its strength through strengthening element addition
- 2022Healing Damage in Friction Stir Processed Mg2Si reinforced Al alloy
- 2022Correlative tomography-based characterization of a newly developed liquid assisted healable Al alloy
- 2022Self-Healing in Metal-Based Systemscitations
- 2022Design, Friction Stir Processing and characterization of a new healable aluminium alloy
- 2022Understanding the ductility versus toughness and bendability decoupling of large elongated and fine grained Al 7475 - T6 alloycitations
- 2022Characterization of the Healability of Aluminium Alloys Produced by Laser Powder Bed Fusion (L-PBF) Using X-ray Nanoholotomography at Synchrotron (ESRF)
- 2022Development of a new liquid assisted healable AlMg alloy produced for Laser Powder Bed Fusion (LPBF)
- 2022Characterization of a newly developed liquid assisted healable Al alloy produced for Laser Powder Bed Fusion (LPBF)
- 2021Towards ductilization of high strength 7XXX aluminium alloys via microstructural modifications obtained by friction stir processing and heat treatmentscitations
- 2019Unveiling the impact of the effective particles distribution on strengthening mechanisms: A multiscale characterization of Mg+Y2O3 nanocompositescitations
- 2018Quantitative assessment of the impact of second phase particle arrangement on damage and fracture anisotropycitations
- 2018Residual ferrite in martensitic stainless steels: the effect of mechanical strength contrast on ductilitycitations
- 20183D characterization, modelling and tailoring of microstructure heterogeneity effects on damage and fracture of 6xxx aluminium alloys
- 2017Ductilization of aluminium alloy 6056 by friction stir processingcitations
- 2016Characterization and micromechanical modelling of microstructural heterogeneity effects on ductile fracture of 6xxx aluminium alloyscitations
Places of action
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document
Characterization of a newly developed liquid assisted healable Al alloy produced for Laser Powder Bed Fusion (LPBF)
Abstract
Aluminium alloys are widely used in aerospace and aeronautic industries because of their excellent strength-to-weight ratio. In these applications, overloads can occur, damage the part and lead to its replacement. In order to increase the part’s lifetime, a solution would be to use a material able to heal its damage and restore its continuity. The most advanced man-made self-healing materials are polymers. They are composed of encapsulated healing agents, which are released when a crack propagates, leading to crack closure [1]. While polymer-based systems have dominated the field of self-healing materials, self-healing of metals remains an important challenge because of the limited mass transfer at room temperature. The aim of this research is to develop a healable Al alloy manufactured by Laser Powder Bed Fusion (LPBF). To this end, elementary powders are mixed to produce a binary alloy composed of a low melting phase dispersed in a high melting point phase. After an overload, damage initiates in the material. A heat treatment is then applied to trigger the melting of the low melting point phase, which can therefore flow in the material towards the voids and fill them. Upon solidification, these voids are thus healed. After composition selection and LPBF parameters optimisation, the healing potential of this newly developed alloy has been analysed. The volume of the defects inside the damaged alloy and after its healing treatment was observed by X-ray nano-tomography experiments at ID16B beamline at the ESRF [2]. This 4D nano-imaging highlighted the progressive filling of the damage sites, allowing to optimise the healing temperature and showing the potential of this healable aluminium alloy. A statistical analysis is then used to determine the fraction and the maximum size of the healed damage sites. Finally, the healing microstructure, and so the filling of the voids was further investigated with the correlative multiscale imaging approach. Precisely allocated, based on the nano-tomography ESRF data, sample sub-volume containing the healed damage, has been further investigated using PFIB-SEM serial sectioning scanning combined with the EDX elemental material composition analysis. The multi-modal tomography data has afterwards been spatially correlated providing multi-resolution overview of the microstructural features confirming the healing mechanism.