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

V. R. Voller

doi:10.1016/S0022-0248(98)00892-6

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

V. R. Voller

Civil, Environmental, and Geo- Engineering

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

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 language	English (US)
Pages (from-to)	333-340
Number of pages	8
Journal	Journal of Crystal Growth
Volume	197
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-0248(98)00892-6
State	Published - Jan 1 1999

Keywords

Semi-analytical microsegregation model

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10.1016/S0022-0248(98)00892-6

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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.",

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AB - 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.

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