Convection modeling in directional solidification

Juan C. Heinrich, David R. Poirier

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Mathematical and numerical models of solidification of binary and multicomponent dendritic alloys that can model the dynamics of the mushy zone as well as the all liquid region are examined. The discussion is centered around models based on finite element discretization of the governing equations that have been developed by the authors during the last fifteen years. The capabilities of existing simulation codes to model the effects of convection and the resulting macrosegregation in castings, and in particular, the development of 'freckles' in vertically solidified dendritic monocrystals are discussed. The current capabilities of the models as well as the areas in which more improvement is needed are noted. Numerical examples are presented to illustrate the different aspects of the simulations. To cite this article: J.C. Heinrich, D.R. Poirier, C. R. Mecanique 332 (2004).

Original languageEnglish (US)
Pages (from-to)429-445
Number of pages17
JournalComptes Rendus - Mecanique
Volume332
Issue number5-6
DOIs
StatePublished - May 1 2004

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Keywords

  • Alliages binaires
  • Alliages multiconstituants
  • Binary alloys
  • Dendritic solidification
  • Directional solidification
  • Macrosegregation
  • Macroségrégation
  • Multicomponent alloys
  • Solidification dendritiques
  • Solidification directionnelle

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

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