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首页> 外文期刊>Journal of Materials Research >Prediction of the contact time through modeling of heat transfer and fluid flow in compound casting process of Al/Mg light metals
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Prediction of the contact time through modeling of heat transfer and fluid flow in compound casting process of Al/Mg light metals

机译：通过铝/镁轻金属复合铸造过程中的传热和流体流动建模预测接触时间

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摘要

In this study, the time that molten magnesium is in contact with the aluminum insert before solidification was predicted by solving the conservation equations of mass, momentum, and energy during compound casting of dissimilar Al/Mg couples. For this purpose, a three-dimensional transient model and FL0W-3D software were utilized and distributions of temperature and velocity vectors in the fluid over time were obtained. Then, the contact time at the bottom, middle, and top of aluminum insert in its interface with the magnesium melt was calculated. The results of simulation show that the contact time decreases from about 1.7 s at bottom to 1.6 s at middle and 0.8 s at top of the interface, respectively. This is consistent with the experimental metallographic observations which indicate a decrease in the thickness of formed intermetallic compounds from bottom to middle and top of the Al/Mg interface.
机译：在这项研究中，通过求解异种Al / Mg对的复合铸造过程中的质量，动量和能量守恒方程，可以预测熔融镁在凝固之前与铝嵌件接触的时间。为此，利用三维瞬态模型和FL0W-3D软件，获得了流体中温度和速度矢量随时间的分布。然后，计算了在铝插入物的底部，中部和顶部与镁熔体的接触时间。仿真结果表明，接触时间分别从界面底部的1.7s减少到界面中间的1.6s和界面顶部的0.8s。这与实验金相观察相一致，实验金相观察表明，从Al / Mg界面的底部到中部和顶部，所形成的金属间化合物的厚度减小。

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  • 来源
    《Journal of Materials Research》 |2017年第11期|2135-2142|共8页
  • 作者

    Morteza Morakabian Esfahani; Esmaeil Hajjari; Ali Farzadi; Seyed Reza Alavi Zaree;

  • 作者单位

    Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz,Ahvaz 61357-83151, Iran;

    Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz,Ahvaz 61357-83151, Iran;

    Department of Mining and Metallurgical Engineering, Amirkabir University of Technology,Tehran 15875-1774, Iran;

    Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz,Ahvaz 61357-83151, Iran;

  • 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);
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  • 正文语种 eng
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