Mathematical Modeling of Binary Alloy Solidification

R. Černý, A. Kalbáč, P. Přikryl

Abstract


Te is simulated. Moving boundary conditions for temperatures are taken into account, which makes it possible to simulate the Bridgman method of crystal growth for instance. The computational experiments reveal a qualitative agreement of the numerically simulated and experimentally measured concentration fields. The influence of principal parameters of Bridgman growth and of the accuracy of material parameters is studied as well. Concerning the material parameters, the liquid/solid thermal conductivity ratio at the melting temperature is found to be the most important because it can affect the shape of the phase interface significantly, and therefore the temperature and concentration fields as well.

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ISSN 1210-2709 (Print)
ISSN 1805-2363 (Online)
Published by the Czech Technical University in Prague