| 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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Mirihanage, Wu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2023The influence of a large build area on the microstructure and mechanical properties of PBF-LB Ti-6Al-4V alloycitations
- 2023Solidification microstructure variations in additively manufactured Ti-6Al-4V using laser powder bed fusioncitations
- 2022Decisive influence of critical process parameters on the microstructure and tensile properties of friction stir back extruded magnesium alloy tubescitations
- 2021Synchrotron X-ray observation of flow evolution during fusion welding.
- 2021Solidification microstructure and residual stress correlations in direct energy deposited type 316L stainless steelcitations
- 2021Understanding thermal exfoliation of h-BN using in situ X-ray diffraction
- 2020Impact failure in two silicates revealed by ultrafast, in situ, synchrotron X-ray microscopycitations
- 2020In-situ probing of the thermal treatment of h-BN towards exfoliationcitations
- 2016The use of in situ X-ray imaging methods in the research and development of magnesium-based grain-refined and nanocomposite materialscitations
- 2015Ultra-fast in-situ X-ray studies of evolving columnar dendrites in solidifying steel weld poolscitations
- 2015Equiaxed dendritic solidification and grain refiner potency characterised through in situ X-radiographycitations
- 2014Time-resolved X-ray diffraction studies of solidification microstructure evolution in weldingcitations
- 2013In-situ X-ray radiographic observations of eutectic transformations in Al-Cu alloys
- 2013Combined in situ X-ray radiographic observations and post-solidification metallographic characterisation of eutectic transformations in Al-Cu alloy systemscitations
- 2012Simulation of international space station microgravity directional solidification experiments on columnar-to-equiaxed transitioncitations
- 2012A combined enthalpy/front tracking method for modelling melting and solidification in laser weldingcitations
- 2012In-situ observation of transient columnar dendrite growth in the presence of thermo-solutal convectioncitations
- 2011Effects of gravity on the columnar to equiaxed transition in directional solidification
- 2011Numerical modelling of the Material Science Lab - Low Gradient Furnace (MSL-LGF) microgravity directional solidification experiments on the columnar to equiaxed transitioncitations
- 2011Investigation of columnar-to-equiaxed transition in solidification processing of AlSi alloys in microgravity - The CETSOL projectcitations
- 2010Prediction of as-cast grain size distribution from a model of equiaxed solidification with free dendrite transport
- 2009Prediction of columnar to equiaxed transition in alloy castings with convective heat transfer and equiaxed grain transportation
- 2009Comparison of nucleation and growth mechanisms in alloy solidification to those in metallic glass crystallisation - Relevance to modelingcitations
- 2009Combined analytical/numerical modelling of nucleation and growth during equiaxed solidification under the influence of thermal convectioncitations
Places of action
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document
Effects of gravity on the columnar to equiaxed transition in directional solidification
Abstract
In industrial casting processes microstructure plays a major role in determining the properties of the final cast product. Columnar to equiaxed transition (CET) is a frequent result of the evolving grain structure during alloy solidification. In this contribution, we analyze CET in directional solidification via numerical simulations. The numerical model employs front tracking to track columnar growth and a volume average approach to account for the evolution of the equiaxed zone. The effects of gravity, thermal natural convection and dendrite transport were integrated into the model. Simulations of vertical directional solidification of an Al-7%wt.Si alloy both in and opposite the direction of gravity were conducted for different cooling conditions. Here, we present a preliminary analysis of these numerical simulations and a comparison of the predictions with previously published theoretical and experimental work.