A phase-field model with two-component order parameter for spontaneous crystallization in a melt of pure metal

被引：0
|
作者：
Melenev, PV [1 ]
Nyashina, ND [1 ]
Trusov, PV [1 ]
机构：
[1] Perm State Tech Univ, Perm 614600, Russia
来源：
CRYSTALLOGRAPHY REPORTS | 2005年 / 50卷 / Suppl 1期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.2133993
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A phase-field model with the two-component order parameter is proposed for describing the crystallization of a pure metal. The model is constructed on the basis of the Ginzburg-Landau theory of phase transitions using the principle of the positivity of entropy production in an open weakly nonequilibrium system. This makes it possible to use the proposed model for describing nonisothermal processes. A number of one-dimensional and two-dimensional problems associated with the simulation of a solidified structure under different temperature conditions are solved. (C) 2005 Pleiades Publishing, Inc.
引用
收藏
页码：S152 / S158
页数：7
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