Selection criterion for the growing dendritic tip in a non-isothermal binary system under forced convective flow

被引：51

作者：

Alexandrov, D. V. ^{[2
]}

Galenko, P. K. ^{[1
,3
]}

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

机构：

[1] Deutsch Zentrum Luft & Raumfahrt, Inst Mat Phys Weltraum, D-51170 Cologne, Germany

[2] Urals State Univ, Dept Math Phys, Ekaterinburg 620083, Russia

[3] Ruhr Univ Bochum, Inst Festkorperphys, D-44780 Bochum, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2010年 / 312卷 / 14期

基金：

俄罗斯基础研究基金会;

关键词：

Stability; Convection; Dendrite; Solidification; Model; SOLIDIFICATION MICROSTRUCTURES; PATTERN SELECTION; FUTURE-DIRECTIONS; GROWTH; STABILITY; VELOCITY; MELTS;

D O I：

10.1016/j.jcrysgro.2010.03.036

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A free dendrite growth during solidification into external forced flow is analyzed using a sharp interface model. A criterion for selection of the stable growth mode is derived for the axisymmetric dendrite growing into non-isothermal binary system under convective flow. The criterion obtained rallies analytic results for dendrite growth under forced convection in a pure system [Ph. Bouissou, P. Pelce, Phys. Rev. A 40 (1989) 6673] and dendrite growth in a stagnant binary system [M. Ben Amar, P. Pelce, Phys. Rev. A 39 (1989) 4263]. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2122 / 2127

页数：6

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