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Article Dans Une Revue Acta Materialia Année : 2011

Multiple non-equilibrium phase transformations: Modeling versus electro-magnetic levitation experiment

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Résumé

A segregation model for multiple phase transformations is coupled with thermodynamic equilibrium calculations, including dendritic, peritectic and eutectic reactions. Its predictions are compared with measurements deduced from an electro-magnetic levitation solidification experiment of an aluminum-nickel alloy. Quantitative agreement is found for the cooling curve and the fraction of microstructures, providing a validation of the kinetics of phase transformations. The effects of nucleation undercooling and coupling with thermodynamic equilibrium calculations are discussed.
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hal-00595250 , version 1 (24-05-2011)

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Damien Tourret, Charles-André Gandin, Thomas Volkmann, Dieter M. Herlach. Multiple non-equilibrium phase transformations: Modeling versus electro-magnetic levitation experiment. Acta Materialia, 2011, 59 (11), pp.4665-4677. ⟨10.1016/j.actamat.2011.04.013⟩. ⟨hal-00595250⟩
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