Distribution of Bi-MnS inclusions in newly solidified steels subjected to horizontal cooling

To further study the distribution and concentration of Bi particles in various cooling zones in newly solidified Bi content 1215 MS steels and to explore the relationship between cooling rate (R) and dendrite arm spacing, the horizontal solidification experiments were carried out by altering the R. Thermodynamics show liquid Bi was immiscible in Fe, which precipitated in the grain boundary and tended to co-exist with sulfides. Under moving rate...