Numerical simulations were performed on the formation of macrosegregation (banding) of directionally solidified Ni-based alloys with thermoelectromagnetic (TEM) effect (Seebeck effect) and electromagnetic (EM) braking taken into account. As an indicator for quantitatively evaluating the degree of segregation, the standard deviation was employed. From the results, it was clarified that by enhancing the cooling intensity on the solid phase region with increased withdrawal speed and by applying an axial static magnetic field, the heat pulse to solidifying interface can be eliminated and the detrimental lateral liquid flow in the mushy zone can be suppressed. Accordingly, it is expected that due to these combined effects, casting defects such as macrosegregation and misoriented grain defects are eliminated and further that the microstructures are refined to produce high quality products with excellent mechanical properties (creep strengths). Regarding the strength of required static magnetic field, it was found that there exists a range where macrosegregation becomes minimum within a relatively low magnetic field range. This leads to a considerable cost reduction of an expensive superconducting coil. In addition, productivity can be increased by increasing the withdrawal speed.

对定向凝固镍基合金的宏观偏析（条带）的形成进行了数值模拟，其中考虑了热电磁（TEM）效应（塞贝克效应）和电磁（EM）制动。作为定量评价偏析程度的指标，采用标准偏差。结果表明，通过提高撤出速度提高固相区域的冷却强度和施加轴向静磁场，可以消除对凝固界面的热脉冲和糊状区域中有害的横向液体流动可以压制。因此，预计由于这些综合影响，铸造缺陷如宏观偏析和取向错误的晶粒缺陷被消除，进一步细化微观结构以生产具有优异机械性能（蠕变强度）的高质量产品。关于所需的静磁场强度，发现在相对低的磁场范围内存在宏观偏析变得最小的范围。这导致昂贵的超导线圈的成本显着降低。此外，可以通过提高退出速度来提高生产率。这导致昂贵的超导线圈的成本显着降低。此外，可以通过提高退出速度来提高生产率。这导致昂贵的超导线圈的成本显着降低。此外，可以通过提高退出速度来提高生产率。