Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Direct Simulation of a Solidification Benchmark Experiment

Abstract : A solidification benchmark experiment is simulated using a three-dimensional cellular automaton-finite element solidification model. The experiment consists of a rectangular cavity containing a Sn-3 wt pct Pb alloy. The alloy is first melted and then solidified in the cavity. A dense array of thermocouples permits monitoring of temperatures in the cavity and in the heat exchangers surrounding the cavity. After solidification, the grain structure is revealed by metallography. X-ray radiography and inductively coupled plasma spectrometry are also conducted to access a distribution map of Pb, or macrosegregation map. The solidification model consists of solutions for heat, solute mass, and momentum conservations using the finite element method. It is coupled with a description of the development of grain structure using the cellular automaton method. A careful and direct comparison with experimental results is possible thanks to boundary conditions deduced from the temperature measurements, as well as a careful choice of the values of the material properties for simulation. Results show that the temperature maps and the macrosegregation map can only be approached with a three-dimensional simulation that includes the description of the grain structure.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [34 références]  Voir  Masquer  Télécharger
Contributeur : Magalie Prudon <>
Soumis le : vendredi 25 avril 2014 - 10:43:10
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
Archivage à long terme le : : vendredi 31 mars 2017 - 15:25:35


Fichiers éditeurs autorisés sur une archive ouverte



Tommy Carozzani, Charles-André Gandin, Hugues Digonnet, Michel Bellet, Kader Zaidat, et al.. Direct Simulation of a Solidification Benchmark Experiment. Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2013, 44 (2), pp.873-887. ⟨10.1007/s11661-012-1465-1⟩. ⟨hal-00747567⟩



Consultations de la notice


Téléchargements de fichiers