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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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Koshikawa, Takao
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2017Experimental study and two-phase numerical modeling of macrosegregation induced by solid deformation during punch pressing of solidifying steel ingotscitations
- 2016Study of Hot Tearing During Steel Solidification Through Ingot Punching Test and Its Numerical Simulationcitations
- 2016Deformation of steel ingots by punch pressing during their solidification. Numerical modelling and experimental validation of induced hot cracking and macrosegregation phenomena ; Déformation des lingots d'acier par poinçon pressant pendant leur solidification. La modélisation numérique et validation expérimentale de la fissuration à chaud et les phénomènes de macroségrégation induite
- 2015Study of hot tearing and macrosegregation through ingot bending test and its numerical simulationcitations
- 2014Computation of Phase Transformation Paths in Steels by a Combination of the Partial- and Para-equilibrium Thermodynamic Approximationscitations
- 2013Study of hot tearing through ingot bending test: thermomechanical and solute transport analysis
Places of action
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conferencepaper
Study of hot tearing through ingot bending test: thermomechanical and solute transport analysis
Abstract
International audience ; Hot tearing is one of the critical defects in cast products. It takes place close to the end of solidification, typically for solid fraction between 0.9 and 1.0, when the material is subjected to deformation based on tensile stress. In this study, a hot tearing experiment, so-called "bending test", is carried out in which a cast ingot is deformed by an external tool before the ingot is fully solidified. To analyze the experiment, two types of thermomechanical simulation are performed. The first one is a classical thermomechanical approach in which the mushy zone (composed of liquid and solid phases) is considered as a homogenized material so that a unique velocity field is solved for [1, 2]. Through stress-strain analyses, macroscopic hot tearing criteria found in literature are then evaluated [3]. The second type is an effective "two phase" modelling approach in which the liquid and solid velocity fields are computed separately in the mushy zone [4]. It allows simulating solute transport phenomena leading to macrosegregation induced by deformation shrinkage and advection. The effect of micro- and macro-segregation on hot tearing sensitivity is then discussed