定向凝固过程硫化锰析出行为研究
Study on the precipitation behavior of MnS by directional solidification
通过不同冷却速率下的定向凝固实验准确控制高硫钢凝固过程冷却速率,研究了冷却速度与元素偏析对高硫钢中MnS析出行为的影响。研究表明,冷却速度从 0.09 oC/s增加到 0.65 oC/s,柱状区内MnS夹杂物的数密度逐渐增大。冷却速度从 0.09 oC/s增加到0.87 oC/s,柱状去内MnS夹杂物平均尺寸从 8.25 μm下降到 5.37 μm.较快的冷却速度抑制了Mn和S的宏观偏析,但加剧了微观偏析。通过偏析模型计算得到在目前的冷却速度范围…查看全部>>
The effect of cooling rate and elemental segregation on the precipitation behavior of MnS in high-sulfur steel was investigated by accurately controlling the cooling rate during solidification of high-sulfur steel through directional solidification experiments at different cooling rates.The results shown that the number density of MnS inclusions in the columnar zone gradually increased as the cooling rate increased from 0.09 oC/s to 0.65 oC/s.With the coolin…查看全部>>
周全磊;杨文;张立峰;
High sulfur steel Directional solidification MnS inclusion Element segregation
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