3D CAFE simulation of a macrosegregation benchmark experiment

被引：7
|
作者：
Carozzani, T. [1 ]
Digonnet, H. [1 ]
Bellet, M. [1 ]
Gandin, Ch. -A. [1 ]
机构：
[1] MINES ParisTech, F-06904 Sophia Antipolis, France
来源：
MCWASP XIII: INTERNATIONAL CONFERENCE ON MODELING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES | 2012年 / 33卷
关键词：
SOLIDIFICATION GRAIN STRUCTURES; FINITE ELEMENT MODEL;
D O I：
10.1088/1757-899X/33/1/012087
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A macrosegregation benchmark experiment is simulated using a three dimensional (3D) Cellular Automaton (CA) - Finite Element (FE) model. It consists of a Sn - 3 wt% Pb alloy solidified in a rectangular cavity. Thanks to tabulated thermodynamic properties and solidification paths with temperature and composition, the effect of natural convection and macrosegregation on cooling curves is correctly predicted. Nucleation parameters are adjusted so that the simulated grain structure correlates with the real grain structure. Although macrosegregation is well predicted, this is not the case for freckles yet observed in the solidified sample.
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页数：9
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