Prediction of macrosegregation in binary alloy solidification using a non-newtonian mushy model

被引：1
|
作者：
Mat, MD
Ilegbusi, OJ
机构：
[1] Nigde Univ, Dept Mech Engn, Nigde, Turkey
[2] Northeastern Univ, Dept Mech Ind & Mfg Engn, Boston, MA 02115 USA
来源：
JOURNAL OF MATERIALS PROCESSING & MANUFACTURING SCIENCE | 2000年 / 8卷 / 03期
关键词：
D O I：
10.1106/JKJ1-4G42-0MDF-PT7A
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The solidification of Sn-10%Pb alloy and subsequent macrosegregation patterns are numerically investigated with a continuum mixture model. The mathematical model is valid in the solid, mushy (solid + liquid) and liquid regions. A hybrid flow model is employed for the mushy region. This model assumes the mushy region behaves as a non-Newtonian fluid below a transitional solid fraction and as a porous medium thereafter. The positive and negative segregations formed during the solidification are successfully predicted.
引用
收藏
页码：218 / 231
页数：14
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