钢凝固过程中二次枝晶间溶质分布的模型研究

钢铁研究, 2009, 37(1): 25-28.

1.钢铁研究总院,工艺所,北京,100081

2.钢铁研究总院,工艺所,北京,100081

3.钢铁研究总院,工艺所,北京,100081

Study on modeling of solute concentration distribution in secondary dendrite during solidification of molten steel

对凝固过程中二次枝晶间溶质质量分数分布进行了模型研究,该模型考虑了包晶反应的影响以及固相中溶质的扩散,讨论了钢中w(C)以及冷却速度对枝晶间溶质质量分数分布的影响.计算结果表明,枝晶间Mn、P的偏析较严重,随着w(C)的增加,枝晶间Mn、P的偏析加剧,随着冷却速度的降低,枝晶间P的偏析降低.

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