| 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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Carneiro, Vítor Hugo Pimenta
Tourisme Transports Territoires Environnement Conseil
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Topics
Publications (14/14 displayed)
- 2023A comparative thermoacoustic insulation study of silica aerogels reinforced with reclaimed textile fibres: cotton, polyester and woolcitations
- 2022The influence of precipitation hardening on the damping capacity in Al–Si–Mg cast components at different strain amplitudescitations
- 2021Macro-, meso- and microstructural characterization of metallic lattice structures manufactured by additive manufacturing assisted investment castingcitations
- 2021Optimizing high-volume ultrasonic melt degassing using synchronized kinematic translationcitations
- 2021Manufacturing methodology on casting-based aluminium matrix composites: systematic reviewcitations
- 2020Additive manufacturing assisted investment casting: a low-cost method to fabricate periodic metallic cellular latticescitations
- 2019Positive, zero and negative Poisson’s ratio non-stochastic metallic cellular solids: dependence between static and dynamic mechanical propertiescitations
- 2019Thin-rib and high aspect ratio non-stochastic scaffolds by vacuum assisted investment castingcitations
- 2019Ultrasonic assisted turning of Al alloys: influence of material processing to improve surface roughnesscitations
- 2019The role of acoustic pressure during solidification of AlSi7Mg alloy in sand mold castingcitations
- 2018Effect of internal structure in the compression behavior of casted Al/LECA composite foams
- 2017Mechanical behavior of honeycomb lattices manufactured by investment casting for scaffolding applicationscitations
- 2016Influence of Copper layer content in the elastic and damping behavior of Glass-fiber/Epoxy-Resin compositescitations
- 2016Effects of different environmental conditions on the mechanical characteristics of a structural epoxycitations
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article
The role of acoustic pressure during solidification of AlSi7Mg alloy in sand mold casting
Abstract
New alloy processes have been developed and casting techniques are continuously evolving. Such constant development implies a consequent development and optimization of melt processing and treatment. The present work proposes a method for studying the influence of acoustic pressure in the overall refinement of sand cast aluminum alloys, using and correlating experimental and numerical approaches. It is shown that the refinement/modification of the α-Al matrix is a consequence of the acoustic activation caused in the liquid metal directly below the face of the acoustic radiator. Near the feeder, there is a clear homogeneity in the morphology of the α-Al with respect to grain size and grain circularity. However, the damping of acoustic pressure as the melt is moved away from the feeder increases and the influence of ultrasound is reduced, even though the higher cooling rate seems to compensate for this effect. ; This work was supported by FCT funding through the project PTDC/EMEEME/30967/2017 (NORTE-0145-FEDER-030967) and by FEDER funding through COMPETE 2020, NORTE2020, PORTUGAL2020 – Programa Operacional Competitividade e Internacionalização (POCI). Additionally, this work was supported by FCT with the reference project UID/EEA/04436/2019. ; info:eu-repo/semantics/publishedVersion