| Abstract Scope |
Reduction of CO2 emissions is of major interest for the modern steel industry. Wider adoption of an existing mature technology, the electric arc furnace (EAF), offers the potential for substantial emissions reduction. The primary input material in most EAFs is scrap steel. One major bottleneck to wider adoption of EAFs is the availability and composition of steel scrap. The element of primary concern is copper, which cannot be removed during steelmaking. During reheating and rolling selective oxidation of iron occurs, enriching the surface in copper which forms a liquid. This copper-rich liquid causes cracking, or copper hot shortness. The presence of copper and other elements: nickel, tin, and silicon, substantially alters the internal and external oxidation behavior of steel. This presentation will review experimental and calculation results on the role of copper and other elements on the selective oxidation phenomena during steel processing. |