Multiple non-equilibrium phase transformations: Modeling versus electro-magnetic levitation experiment

被引：36

作者：

Tourret, D. ^{[1
]}

Gandin, Ch. -A. ^{[2
]}

Volkmann, T. ^{[1
]}

Herlach, D. M. ^{[1
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt, Inst Mat Phys Weltraum, D-51147 Cologne, Germany

[2] MINES Paris Tech, CEMEF UMR CNRS 7635, F-06904 Sophia Antipolis, France

来源：

ACTA MATERIALIA | 2011年 / 59卷 / 11期

关键词：

Solidification; Modeling; Segregation; Peritectic; Electro-magnetic levitation; SOLUTE DIFFUSION-MODEL; DENDRITIC ALLOY SOLIDIFICATION; SEGREGATION MODEL; GROWTH; COLUMNAR; SYSTEMS;

D O I：

10.1016/j.actamat.2011.04.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A segregation model for multiple phase transformations is coupled with thermodynamic equilibrium calculations, including dendritic, peritectic and eutectic reactions. Its predictions are compared with measurements deduced from an electro-magnetic levitation solidification experiment of an aluminum-nickel alloy. Quantitative agreement is found for the cooling curve and the fraction of microstructures, providing a validation of the kinetics of phase transformations. The effects of nucleation undercooling and coupling with thermodynamic equilibrium calculations are discussed. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：4665 / 4677

页数：13

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