A semi-analytical model of microsegregation and coarsening in a binary alloy

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Abstract

On making suitable approximations for the redistribution of solute in the solid and the nature of coarsening a semi-analytical microsegregation and coarsening model for the analysis of the solidification of a constantly cooled binary eutectic alloy is developed. This model is calibrated by matching results with a limiting case microsegregation model and the standard t(1/3) coarsening model. Predictions - arm spacing and eutectic fractions - are in close agreement with experimental values and predictions obtained with a complete numerical solution of microsegregation with coarsening.

Original languageEnglish (US)
Pages (from-to)333-340
Number of pages8
JournalJournal of Crystal Growth
Volume197
Issue number1-2
DOIs
StatePublished - Jan 1 1999

Keywords

  • Semi-analytical microsegregation model

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