Effect of High Vertical Magnetic Field on Directional Solidification Structure of Eutectic MnBi/Bi
纵向强磁场对MnBi/Bi共晶定向凝固组织的影响

Effect of high vertical magnetic field on the directional solidification structure of eutectic MnBi/Bi has been investigated. It has been found that high magnetic field has enhanced the formation of MnBi fiber and make the directional solidification structure of eutectic MnBi/Bi more regular; with the increase of the intensity of the magnetic field, the average spacing and diameters of MnBi fibers increase at same growth rate; magnetic field makes the morphology of MnBi phase change and enhances the faceted growth character of MnBi phase.