Anomalous behavior of the steel alloying elements in the genetic structure of the solid metal at its smelting in electric furnaces
DOI:
https://doi.org/10.31498/2225-6733.31.2015.70141Keywords:
element steel, γ - phase, α - phase, ferrite, pearliteAbstract
Melting process in an electric arc furnace and transformations taking place in solidified metals are not thoroughly understood yet. This article is devoted to these phenomena in liquid and solid metal and therefore is relevant at the moment. The authors sampled molten metal during all periods of mild steel smelting in an electric arc furnace beginning from melting the charge up to metal outlet out of the furnace into the ladle. Samples were analyzed for chemical elements content, and the microstructure of solidified samples (the ratio of ferrite and pearlite). It has been found that elements expanding γ – phase domain of existence (Mn, Ni) during oxidation act similarly at deoxidation, but much weaker. This fact is interesting for science, it is advisable that these phenomena should be checked for the metal melted in other melting units – induction and crucible furnacesReferences
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