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Distribution of alloying elements and the corresponding structural evolution of Mn-Sb alloys in high magnetic field gradients

机译：高磁场梯度下Mn-Sb合金的合金元素分布及结构演变

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摘要

The distribution of alloying elements and the corresponding structural evolution of Mn-Sb alloys in magnetic field gradients were investigated in detail. It was found that a high magnetic field gradient could control the distribution of solute element in the alloys during the solidification process and therefore resulted in the coexistence of both primary MnSb and Sb phases or the aggregation of the primary MnSb with a continuous change in morphology. The positions where these primary phases located depended on the direction of field gradient. The control of the solute element distribution by a high magnetic field gradient was realized through the magnetic buoyancy force that could drive the migration of Mn element in the melt, originating from the difference in the magnetic susceptibility between Mn and Sb. The effectiveness of this control depends on the alloy composition, specimen dimension, cooling rate, and |BdB/dz| value.
机译：详细研究了Mn-Sb合金在磁场梯度中合金元素的分布及相应的结构演变。发现高磁场梯度可以控制凝固过程中合金中溶质元素的分布，因此导致初级MnSb和Sb相共存或初级MnSb聚集，并且形态连续变化。这些主相的位置取决于场梯度的方向。通过磁性浮力实现了高磁场梯度对溶质元素分布的控制，该浮力可以驱动Mn元素在熔体中的迁移，这是由于Mn和Sb之间的磁化率不同所致。这种控制的有效性取决于合金成分，试样尺寸，冷却速率和| BdB / dz |。值。

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  • 来源
    《Journal of Materials Research》 |2010年第9期|P.1718-1727|共10页
  • 作者

    Tie Liu; Qiang Wang; Ao Gao; Hongwei Zhang; Kai Wang; Jicheng He;

  • 作者单位

    Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, China;

    rnKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, China;

    and Department of Materials Scienceand Engineering, University of California at Berkeley, Berkeley, California 94720rnKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, China;

    rnKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, China;

    rnKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, China;

    rnKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University, Shenyang 110004, 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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