Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/112152
Title: Effects of Local Nonequilibrium in Rapid Eutectic Solidification—Part 2: Analysis of Effects and Comparison to Experiment
Authors: Xu, J.
Rettenmayr, M.
Galenko, P. K.
Issue Date: 2021
Publisher: John Wiley and Sons Ltd
Wiley
Citation: Xu J. Effects of Local Nonequilibrium in Rapid Eutectic Solidification—Part 2: Analysis of Effects and Comparison to Experiment / J. Xu, M. Rettenmayr, P. K. Galenko // Mathematical Methods in the Applied Sciences. — 2021. — Vol. 44. — Iss. 16. — P. 12271-12282.
Abstract: The developed model of diffusion-limited and diffusionless solidification of a eutectic alloy describes the relation “undercooling (ΔT)-velocity (V)-interlamellar spacing (λ)” for two cases. Namely, when the solidification front velocity V is smaller than the solute diffusion speed in bulk liquid VD, V < VD, the model predicts a regime of eutectic solidification similarly to known classical models. If the solidification front velocity V is higher than the diffusion speed, V > VD, the solidification is mainly controlled by kinetic and thermal undercoolings. New expressions for the solute distribution coefficient and slope of the liquidus lines are supplied. The influence of the model parameters on the growth kinetics during eutectic solidification is discussed. Model predictions are compared with experimental data for the solidification of an Fe–B alloy with eutectic composition. Computational results show that the model agrees well with experimental data especially for low and high undercoolings, extending the undercooling range that can be covered by sharp interface modeling. © 2021 The Authors. Mathematical Methods in the Applied Sciences published by John Wiley & Sons Ltd.
Keywords: DIFFUSION
EUTECTIC GROWTH
INTERFACE
SOLIDIFICATION
SOLUTE
DIFFUSION
EUTECTICS
GROWTH KINETICS
underCOOLING
COMPUTATIONAL RESULTS
EUTECTIC COMPOSITION
EUTECTIC SOLIDIFICATION
HIGH underCOOLINGS
INTERLAMELLAR SPACING
SHARP INTERFACE MODEL
SOLIDIFICATION FRONTS
SOLUTE DISTRIBUTION
SOLIDIFICATION
URI: http://hdl.handle.net/10995/112152
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85099366143
PURE ID: 23817809
ISSN: 0170-4214
metadata.dc.description.sponsorship: This work was also financially supported by the German Science Foundation (DFG) GA1142/11-1, the Science and Technology Program of Shaanxi Province (No. 2016KJXX-87), and the Foundation of Shaanxi Provincial Department of Education (No. 18JS050). Open access funding enabled and organized by Projekt DEAL.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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