Estimation of the Formation of A-segregation in Steel Ingot in Terms of the Chemical Composition of Steel
Estimation of the Formation of A-segregation in Steel Ingot in Terms of the Chemical Composition of Steel
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根据钢的化学成分估算钢锭中A偏析的形成情况
DOI：
10.2355/tetsutohagane1955.67.7_954
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
G. Kasai
中科院分区：
文献类型：
--
作者：
O. Haida;Shinobu Okano;Emi Toshihiko;G. Kasai
其中理论上的考虑使我们能够确定每个溶质元素的系数In的值。上述NA方程表明，糊状区中剩余熔体的浮力激活的运动对A偏析的形成起主导作用。这通过单独的实验得到证实，其中在26 t模具中铸造具有0.043%硅和0.13%钼的板级碳钢，与具有0.34%硅且不含钼的相同等级的锭相比，导致NA显著降低约1/4。
where theoretical consideration has enabled us to determine the value of the coefficient, In, for each solute element. The above equation for NA indicates that the movement activated by buoyancy of the remaining melt in the mushy zone plays a dominant role on the formation of A-segregates. This is confirmed by separate experiments where plate grade carbon steel with 0.043%silicon and 0.13%molybdenum has been cast in a 26 t mold, resulting in significant decrease of NA, about 1/4, in comparison with ingot of the same grade but with 0.34%silicon and no molybdenum.