Electromagnetic stirring promotes the coarse and oriented columnar grains and the dendrites transforming into the equiaxed grains through increasing heterogeneous nuclei in weld metal ...

• 电磁搅拌通过增加焊缝中非均质形核核心,降低固液前沿液相的温度梯度,促进粗大柱状晶和枝晶转变为细小等轴晶,提高焊缝金属的强度和塑性。