脉冲磁场强度对钛处理低碳钢凝固过程的影响

采用自发研制的脉冲磁场发生装置将脉冲磁场非接触式地施加到钛处理低碳钢的凝固过程中，利用金相显微镜、扫描电镜和能谱仪研究了不同强度的脉冲磁场对试样的宏观形貌、枝晶和组织的影响。结果表明，随着脉冲磁场强度的增加，试样的宏观表面逐渐变得平整；枝晶和组织随着脉冲磁场强度的增加逐渐细化，但达到一定强度后，继续增加又出现了相反的结论。由此可以推断，脉冲磁场强度对枝晶和组织的影响存在一个最佳值。

Influence of pulsed magnetic field intensity on solidification of low carbon steel with titanium treatment

The pulsed magnetic field was applied into the solidification process of low carbon steel with titanium treatment without contact by the spontaneously developed device of pulse magnetic field generator, and the influence of pulsed magnetic field under different discharge voltage on macro morphology, dendrite and organization of the specimen was studied by metallographic microscope, scanning electron microscope and energy spectrometer. The results showed that the macro surface of the sample gradually became flat with the increase of discharge voltage. Furthermore, the dendrite and organization was gradually refined as the pulse magnetic field strength increased, but after reaching a certain strength, the opposite conclusion was obtained with continuously increasing the strength. Thus, it could be inferred that the influence of pulsed magnetic field intensity on dendrite and organization had an optimum value.