Mechanism of Decarburization Reaction of Stainless Steel in Reduced Pressure and the Effect of Stirring Condition

Abstract

The most suitable stirring condition has been investigated on the basis of the mechanism of the decarburization in VOD.Results are summerized as follows :
(1) A decarburization model considering each reaction sites as hot spot, free surface, internal, bubble and slag was constructed. As a results, it became possible to quantify the contribution ratio of each reaction site in decaburization rate at each [C] region in VOD.
(2) Decarburization rate became larger with increasing stirring energy. And it was larger at a single tuyer than bouble tuyers according to the defference of the plume eye area.