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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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| 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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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jadot, Matthieu
Université Catholique de Louvain
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Analysis of grain structure, precipitation and hardness heterogeneities, supported by a thermal model, for an aluminium alloy 7075 deposited by solid-state multi-layer friction surfacingcitations
- 2024Heterogeneities in solid-state MLFS additively manufactured 7075 aluminium alloy
- 2024Processing, Microstructure and Mechanical Properties of Multi-layer Friction Surfacing in 7075 Aluminium Alloy
- 2024Process parameters selection for multi-layer friction surfacing of 7075 aluminium alloycitations
- 2023Heterogeneities in solid-state additively manufactured 7075 aluminium alloy
- 2023Heterogeneities in solid-state additively manufactured 7075 aluminium alloy
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document
Processing, Microstructure and Mechanical Properties of Multi-layer Friction Surfacing in 7075 Aluminium Alloy
Abstract
The solid-state AM process of Multi-Layer Friction Surfacing (MLFS) of high strength aluminium alloy 7075 leads to microstructure (grain size and precipitates size and distribution) and mechanical heterogeneities. The mean grain size at the bottom and top of a given layer is finer than at the middle of that layer. The strengthening precipitates are significantly affected by the layered structure due to the complex thermal field. These microstructural heterogeneities are affected by the thermal cycles experienced by the aluminium alloy 7075. The precipitates size gradient along the thickness of the deposit causes the significantly higher microhardness of the top layer. Post-deposition heat treatments are used to restore the uniformly T6 state microhardness. Although the part reveals some abnormal grain growth after the T6 heat treatment, tensile testing exhibits a strength above 500MPa and an elongation of typically 10%.