The correct choice of the materials and the correct procedures while melting the steel, may in fact, improve the final quality of the casted part, and can be indirectly evaluated with some techniques after fine-tuning the overall aspects during the melt.
Inclusions are a serious problem in a steel open melt, especially if it is not used argon purging and there is no lid on the furnace. This paper is written for industrials with this situation. There must be a plan while melting and pouring, or the effect of oxidation of the melt will be severe and out of control. The planning should be based on the thermodynamical way, tested and fine tuned if necessary in order to ensure proper reaction kinetics.