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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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Green, Nicholas
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2013Complex free surface flows in centrifugal casting : computational modelling and validation experimentscitations
- 2013Modelling and validation : casting of Al and TiAl alloys in gravity and centrifugal casting processescitations
- 2012In situ characterisation of entrainment defects in liquid Al-Si-Mg alloy
- 2012Modeling of centrifugal casting processes with complex geometries
- 2011Modelling centrifugal casting: the challenges and validation
- 2010Centrifugal casting of complex geometries
- 2010An investigation on DC casting of a wrought aluminium alloy at below liquidus temperature by using melt conditionercitations
- 2009Centrifugal casting of complex geometries: Computational modelling and validation experiments
- 2009Complex free surface flows for mould filling using centrifugal casting
- 2008Surface segregation during directional solidification of Ni-base superalloyscitations
- 2001Influence of casting technique and hot isostatic pressing on the fatigue of a Al-7Si-Mg alloycitations
Places of action
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document
In situ characterisation of entrainment defects in liquid Al-Si-Mg alloy
Abstract
<p>Entrainment defects occur frequently in aluminium alloy castings during mould filling, and are very detrimental to both mechanical properties and reliability. The formation mechanisms and influences of these defects have been discussed previously, but the behaviour of the defects in the liquid metal and their evolution during solidification has not been studied in detail. In this research, samples of Al-Si-Mg alloy A356 that contained entrainment defects were scanned using ultra-fast synchrotron-based X-ray tomographic microscopy at the TOMCAT beamline of the Paul Scherrer Institut. The samples were directly viewed at both room temperature and in a fully liquid state. The reconstructed images showed three different entrainment defect morphologies, namely, entrained pores, tangled double oxide films and closed cracks. The evolution of the morphology of the entrainment defects was studied to better understand morphological changes of the defects, and the relationship between entrainment defects and microporosity.</p>