| 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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Velhinho, Alexandre
Consejo Superior de Investigaciones Científicas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Experimental study of Double-Elliptic-Ring-based thermomechanical metamaterials’ behaviourcitations
- 2019Graphene oxide-reinforced aluminium-matrix nanostructured composites fabricated by accumulative roll bondingcitations
- 2019Development of polymeric anepectic meshes: Auxetic metamaterials with negative thermal expansioncitations
- 2018Study of the fatigue limit of a cast aluminium alloy AlSi7Mg
- 2018Production of composite materials fabricated by additive manufacturing: evaluation of different NDT techniques for defect detection
- 2018Study of Wear Behaviour of a Helical Gear
- 2017Aluminium alloys behaviour in the foundry process
- 2014Anodization Mechanism on SiC Nanoparticle Reinforced Al Matrix Composites Produced by Power Metallurgycitations
- 2012A Problem-Solving Environment for reinforcement distribution characterization in composites using tomographic images
- 2010A Graphical Tool for the Tomographic Characterization of Microstructural Features on Metal Matrix Composites
- 2010Corrosion behaviour of aluminium syntactic functionally graded composites
- 2008Microstructure characterization of aluminium syntactic functionally graded composites containing hollow ceramic microspheres manufactured by radial centrifugal casting
- 2005Evaluation of SiC-particle connectivity in functionally graded Al/SiC p composites by synchrotron radiation holographic microtomographycitations
- 2003X-ray tomographic imaging of Al/SiCp functionally graded composites fabricated by centrifugal castingcitations
- 2003Al/SiCp functionally graded metal-matrix composites produced by centrifugal casting: Effect of particle grain size on reinforcement distributioncitations
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document
Aluminium alloys behaviour in the foundry process
Abstract
Aluminium alloys, due to their mechanical properties – low density, relatively high tensile strength, high strength-to-weight ratio (specific strength) and resistance to corrosion - are of great importance for industrial applications. Since these alloys have relatively low melting points, the casting process is preferred, since it allows the manufacturing of parts with complex configurations, of varying sizes. However, not all alloys are fit for this process, and their correct selection is crucial in each project. For this study, among the existing aluminium alloys, AlSi7Mg alloy was chosen. The addition of magnesium to aluminium-silicon alloys results in very good casting characteristics, with excellent properties after heat treatment. This alloy also presents high resistance to corrosion and maintains a low level of thermal expansion, which is very advantageous for the manufacture of engines or other components subject to heat and/or thermal fatigue during their life cycle. It is widely used in both the automotive and aeronautics industries, and its study is therefore of the utmost importance. As in any manufacturing process, the casting process leads to the existence of intrinsic defects that influence the durability of the parts and must therefore be taken into account. The main defects resulting from the casting of this type of aluminium alloys are hollows, porosity resulting from shrinkage and dissolution of hydrogen in the molten metal, and oxide films that can form during the pouring of the molten metal. Any of these defects can act as crack initiators, and seriously compromise the durability of the part. This work intends to study these defects, analysing which ones have more influence in the durability of the part, as well as the factors that cause them, with the aim of optimizing the process.