Meso-scale simulation of grain nucleation, growth and interaction in castings

S. Mc Fadden, D. J. Browne

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

It is shown that thermal effects dominate the interaction between neighbouring growing dendritic crystals in alloy solidification, for the majority of the growth stage between nucleation and impingement in typical castings. It is only near final impingement between growing grains that their solutal boundary layers overlap. Relevant predictions of a meso-scale front tracking computational model are presented for two scenarios that are usually simplified. The pitfalls of assuming temperature a priori (as done in some recent models) are highlighted.

Original languageEnglish
Pages (from-to)847-850
Number of pages4
JournalScripta Materialia
Volume55
Issue number10
Early online date24 Aug 2006
DOIs
Publication statusPublished - 1 Nov 2006

Keywords

  • Casting
  • Dendritic growth
  • Front tracking
  • Modelling

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