外加磁场改变了渗碳体片层的分叉形成过程，随磁通密度的增加，珠光体晶粒内部的渗碳体片层趋向于平行排列。
The bifurcation process of cementite flake is changed by magnetic field. The cementite flakes in pearlite grains tend to be parallel with the increase of magnetic flux density.
外加磁场改变了渗碳体片层的分叉形成过程，随磁通密度的增加，珠光体晶粒内部的渗碳体片层趋向于平行排列。
The bifurcation process of cementite flake is changed by magnetic field. The cementite flakes in pearlite grains tend to be parallel with the increase of magnetic flux density.
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