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Modeling of heat and solute interactions upon grain structure solidification

Abstract : Simulations of several laboratory experiments developed for the study of structure and segregation in casting are presented. Interaction between the development of dendritic grain structure and segregation due to the transport of heat and mass by diffusion and convection is modeled using a Cellular Automaton - Finite Element model. The model includes a detailed treatment of diffusion of species in both the solid and liquid phases as presented elsewhere in this volume [1]. Applications deal with prediction of columnar and equiaxed grain structures, as well as inter-dendritic and inter-granular segregations induced by diffusion and macrosegregation induced by thermosolutal buoyancy forces
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Submitted on : Wednesday, September 29, 2010 - 5:47:16 PM
Last modification on : Sunday, January 3, 2021 - 4:46:02 PM

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Charles-André Gandin, Jérôme Blaizot, Salem Mosbah, Michel Bellet, Gerhard Zimmermann, et al.. Modeling of heat and solute interactions upon grain structure solidification. 5th International Conference on Solidification and Gravity; Miskolc-Lillafured; 4 September 2008 through 5 September 2008, Sep 2008, Miskolc-Lillafured, France. pp.189-198, ⟨10.4028/www.scientific.net/MSF.649.189⟩. ⟨hal-00522120⟩

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