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Abstract: A self-adjusting eutectic growth model with time is
presented on the basis of the effect of temperature gradient on eutectic
growth and a curved solid-liquid interface. Finite differential method (FDM)
is adopted to solve the model. The average interlamellar spacings of the
Al-Al3Fe in Al-2%Fe eutectic alloy and the concentration fields ahead of
the solid fying interface are calculated. Unidirectional solidification
experiments are carried out in order to demonstrate the correction of
the modelling. The experimental results are in relatively good agreement
with calculations.
Key words: Al-Fe eutectic alloy Numerical modelling Growth rate
Interlamellar spacing
CLC No: TG249.4
国家教育部优秀青年骨干教师基金资助计划(0027119). Received 20001106, received in revised
form 20020830
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