Numerical solution and comparison to experiment of solute drag models for binary alloy solidification with a planar phase interface

被引：21
|
作者：
Li, Shu [1 ]
Zhang, Jiong [1 ]
Wu, Ping [1 ]
机构：
[1] Tianjin Univ, Dept Appl Phys, Inst Adv Mat Phys,Sch Sci, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Tianjin 300072, Peoples R China
来源：
SCRIPTA MATERIALIA | 2010年 / 62卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Alloy; Solidification; Interface migration; Solute drag effect; Modelling; GRAIN-BOUNDARY MOTION; RAPID SOLIDIFICATION; IMPURITY-DRAG; GROWTH; RECRYSTALLIZATION; SEGREGATION; MIGRATION;
D O I：
10.1016/j.scriptamat.2010.01.041
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A generalized solute drag model for binary alloy solidification with a planar phase interface was proposed as an extension of Hillert-Sundman model. Using a new thermodynamic parameter set of the Si-As system, the present model can, with the introduction of three new adjustable parameters, fit the available experimental data of Si-9 at.% As alloy. In addition, non-solute drag models with the new set of thermodynamic parameters cannot reproduce the experimental data. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：716 / 719
页数：4
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