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Generalised 'Jackson-Hunt' model for eutectic solidification at low and large Peclet numbers and any binary eutectic phase diagram

机译:在低和大Peclet数下的共晶凝固的通用“ Jackson-Hunt”模型以及任何二元共晶相图

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摘要

Based on the generalised 'Jackson-Hunt' model from Donaghey and Tiller for eutectic solidification of binary alloys, a relation between growth velocity, lamellar spacing and interface undercooling for any binary eutectic phase diagrams and any Peclet number is derived. This relation is then used to propose a generalised scaling law for eutectic growth. The predictions of this generalised scaling law are discussed for extremely different eutectic phase diagrams and compared with predictions made by the TMK-model for symmetrical phase diagrams.
机译:基于Donaghey和Tiller的广义“ Jackson-Hunt”模型对二元合金的共晶凝固,得出了任何二元共晶相图和任何Peclet数的生长速度,层间距和界面过冷之间的关系。然后使用该关系为共晶生长提出广义尺度定律。讨论了针对极不同共晶相图的广义比例定律的预测,并将其与TMK模型对对称相图的预测进行了比较。

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