A model of microsegregation during binary alloy solidification

被引：36

作者：

Voller, VR ^{[1
]}

机构：

[1] Univ Minnesota, St Anthony Falls Lab, Minneapolis, MN 55414 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2000年 / 43卷 / 11期

关键词：

D O I：

10.1016/S0017-9310(99)00268-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Two numerical microsegregation models are presented which can be used to check approximate microsegregation relationships used for large-scale solidification analysis. In the first, the solidification is controlled by a constant cooling rate, while a parabolic growth rate is assumed in the second. Both account for solute back-diffusion into the solid and coarsening of the arm space. Comparison with limiting analytical solutions and measurements indicate that both models function correctly and can provide accurate and practical results.

引用

页码：2047 / 2052

页数：6

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