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首页> 外文期刊>Journal of Materials Research >A lateral remelting phenomenon of the primary phase below the temperature of peritectic reaction in directionally solidified Cu-Ge alloys
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A lateral remelting phenomenon of the primary phase below the temperature of peritectic reaction in directionally solidified Cu-Ge alloys

机译：定向凝固Cu-Ge合金中包晶反应温度以下主相的侧向重熔现象

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摘要

During peritectic solidification, besides the longitudinal remelting of the primary phase at the temperature of peritectic reaction (T_p~k) a lateral remelting phenomenon of the primary phase below T_p~k is observed under high velocity in directionally solidified Cu-Ge alloys. The lateral remelting occurs continuously along a liquid channel as temperature decreases, and the lateral remelting velocity is larger than that of peritectic transformation. The lateral remelting leads to the morphological change of the primary dendrites, even the fragmentation of dendrite arms. The phenomenon also means that the classical theory calculating the volume fraction of the primary phase during peritectic transformation can need to be modified under some conditions. However, under low velocity, the phenomenon is not so significant. The phenomenon is explained by means of solidification and remelting theory.
机译：在包晶凝固过程中，除了在包晶反应温度（T_p〜k）下初生相的纵向重熔外，在定向凝固的Cu-Ge合金中，在高速下还观察到初生相的横向重熔现象低于T_p〜k。随着温度降低，横向重熔沿着液体通道连续发生，并且横向重熔速度大于包晶转变的速度。横向重熔导致初级枝晶的形态变化，甚至枝晶臂断裂。这种现象还意味着在包晶转变过程中计算一次相体积分数的经典理论可能需要在某些条件下进行修改。然而，在低速下，该现象并不那么明显。该现象是通过凝固和重熔理论来解释的。

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  • 来源
    《Journal of Materials Research》 |2013年第23期|3261-3269|共9页
  • 作者

    Shujie Wang; Liangshun Luo; Yanqing Su; Jingjie Guo; Hengzhi Fu;

  • 作者单位

    National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China;

    National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China;

    National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China;

    National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China;

    National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China;

  • 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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