TY - JOUR
T1 - Characterization of steel billet scales generated during the continuous casting process in SIDERPERU steel plant
AU - Borja-Castro, L. E.
AU - Bustamante Dominguez, A.
AU - Valerio-Cuadros, M. I.
AU - Valencia-Bedregal, R. A.
AU - Cabrera-Tinoco, H. A.
AU - Espinoza Suarez, S. M.
AU - Kargin, J.
AU - Moreno, N. O.
AU - Barnes, C. H.W.
AU - Valladares, L. De Los Santos
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Tons of waste is produced during iron steel’s industrial production, creating environmental pollution. This work aims to characterize the steel scale formed on the billet surface during the last step of steel production in the SIDERPERU steel plant. Scanning Electron Microscopy (SEM) shows stacked layers one above the other on steel billets scales surface. Energy Dispersive X-ray (EDX) and X-ray Fluorescence (XRF) reveal the high content of Fe and O, with Ca, Si, Mn, and Cr as minority elemental compounds. X-ray Diffraction (XRD) shows FeO, α-Fe2O3 and Fe3O4 as crystallographic phases. Magnetometry reveals Verwey transition and paramagnetic signals that screen the Morin transition. Mössbauer Spectroscopy at room temperature displays magnetic and non-magnetic parts. The non-magnetic part has the hyperfine parameters corresponding to predominant nonstoichiometric wustite. Octahedral (Fe+2/Fe3+) and tetrahedral Fe+3 hyperfine fields of 46.0 and 49.4 T values respectively are associated to nonstoichiometric magnetite and another sextet with a hyperfine field of 52.0 T is related to hematite.
AB - Tons of waste is produced during iron steel’s industrial production, creating environmental pollution. This work aims to characterize the steel scale formed on the billet surface during the last step of steel production in the SIDERPERU steel plant. Scanning Electron Microscopy (SEM) shows stacked layers one above the other on steel billets scales surface. Energy Dispersive X-ray (EDX) and X-ray Fluorescence (XRF) reveal the high content of Fe and O, with Ca, Si, Mn, and Cr as minority elemental compounds. X-ray Diffraction (XRD) shows FeO, α-Fe2O3 and Fe3O4 as crystallographic phases. Magnetometry reveals Verwey transition and paramagnetic signals that screen the Morin transition. Mössbauer Spectroscopy at room temperature displays magnetic and non-magnetic parts. The non-magnetic part has the hyperfine parameters corresponding to predominant nonstoichiometric wustite. Octahedral (Fe+2/Fe3+) and tetrahedral Fe+3 hyperfine fields of 46.0 and 49.4 T values respectively are associated to nonstoichiometric magnetite and another sextet with a hyperfine field of 52.0 T is related to hematite.
KW - Continuous casting
KW - Iron oxides
KW - Mössbauer spectroscopy
KW - Steel billet scale
UR - http://www.scopus.com/inward/record.url?scp=85120785487&partnerID=8YFLogxK
U2 - 10.1007/s10751-021-01778-8
DO - 10.1007/s10751-021-01778-8
M3 - Original Article
AN - SCOPUS:85120785487
SN - 0304-3843
VL - 242
JO - Hyperfine Interactions
JF - Hyperfine Interactions
IS - 1
M1 - 53
ER -
