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Influence of a Slow Rotating Magnetic Field in Thermoelectric Magnetohydrodynamic Processing of Alloys

机译：慢旋转磁场对合金热电磁流体力学处理的影响

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摘要

The effects of a slow rotating magnetic field on Thermoelectric Magnetohydrodynamics during alloy solidification were investigated using a micro-scale numerical model. For conventional directional solidification it was shown that in general the time-dependent acceleration force on the fluid flow is negligible. Using an undercooled growth model with directional solidification approximations the effect on dendritic morphology is predicted, suggesting thermoelectric induced flows will create a significant increase in secondary branching and preferential growth directions on one side of the primary trunk. The extent of macro-segregation under these conditions was also estimated.
机译：使用微型数值模型研究了慢速旋转磁场对合金凝固过程中热电磁流体动力学的影响。对于常规的定向凝固，已经表明，通常随时间变化的对流体流动的加速力可忽略不计。使用具有定向凝固近似值的过冷生长模型，可以预测其对树枝状形态的影响，这表明热电感应流将在主干的一侧显着增加次要分支和优先生长方向。还估计了在这些条件下的宏观隔离程度。

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  • 来源
    《ISIJ international》 |2014年第6期|1283-1287|共5页
  • 作者

    Andrew KAO; Peter David LEE; Koulis PERICLEOUS;

  • 作者单位

    Centre for Numerical Modelling and Processes Analysis, University of Greenwich, Old Royal Naval College, Park Row, London, SE10 9LS;

    The Manchester X-Ray Imaging Facility, School of Materials, The University of Manchester, Oxford Rd., M13 9PL, UK;

    Centre for Numerical Modelling and Processes Analysis, University of Greenwich, Old Royal Naval College, Park Row, London, SE10 9LS;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thermoelectric Magnetohydrodynamics; rotating magnetic field; directional solidification;

    机译：热电磁流体动力学;旋转磁场定向凝固;

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