Modelling of dendritic solidification in undercooled dilute Ni-Zr melts

被引：37
|
作者：
Galenko, P. K. [1 ]
Reutzel, S. [1 ]
Herlach, D. M. [1 ]
Danilov, D. [2 ]
Nestler, B. [2 ]
机构：
[1] Deutsch Zentrum Luft & Raumfahrt, Inst Mat Phys Weltraum, D-51170 Cologne, Germany
[2] Karlsruhe Univ Appl Sci, Inst Appl Res, D-76133 Karlsruhe, Germany
来源：
ACTA MATERIALIA | 2007年 / 55卷 / 20期
关键词：
dendrite; solidification; diffusion; undercooling; alloy;
D O I：
10.1016/j.actamat.2007.08.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The kinetics of dendritic solidification in undercooled Ni-Zr samples is analyzed using new experimental results and theoretical studies based on a sharp-interface model and phase-field simulations. The predictions of a sharp-interface model and of a diffuse-interface model describing the phase transition considering both thermal and solutal diffusion are compared with the new experimental results by evaluating the dendritic tip velocity in electromagnetically levitated Ni-Zr samples. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6834 / 6842
页数：9
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