Modeling of Heat and Solute Interactions upon Grain Structure Solidification

Author:

Gandin Charles-André1,Blaizot J.1,Mosbah Salem1,Bellet Michel2,Zimmermann Gerhard3,Sturz Laszlo3,Browne David J.4,McFadden Shaun5,Jung H.6,Billia Bernard7,Mangelinck-Noël Nathalie6,Nguyen-Thi Henri7,Fautrelle Yves8,Wang Xiao Dong9

Affiliation:

1. Ecole des Mines de Paris

2. MINES-ParisTech

3. ACCESS Materials and Processes e.V.

4. University College Dublin

5. Dublin Institute of Technology

6. Université Paul Cézanne Aix-Marseille III

7. L2MP, U.M.R./CNRS 6242, Université Paul Cézanne

8. EPM/CNRS/SIMAP/Grenoble Polytechnic Institute

9. CNRS-INPG ENSEEG

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.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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