Characterization of steel billet scales generated during the continuous casting process in SIDERPERU steel plant
Borja-Castro L.E. Bustamante Dominguez A. Valerio-Cuadros M.I. Valencia-Bedregal R.A. Cabrera-Tinoco H.A. Espinoza Suarez S.M. Kargin J. Moreno N.O. Barnes C.H.W. Valladares L.D.L.S.
December 2021Springer Science and Business Media Deutschland GmbH
Hyperfine Interactions
2021#242Issue 1
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.
Continuous casting , Iron oxides , Mössbauer spectroscopy , Steel billet scale
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Laboratorio de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149, Lima, Peru
Departamento de Física, Universidade Estadual de Maringá, Av. Colombo, 5790 - Jardim Universitário, Maringá, 87020-900, PR, Brazil
Facultad de Ingeniería, Universidad Continental, Lima, 15311, Peru
Department of Technologies Commercialization, L. N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan
Departamento de Física, Universidade Federal de Sergipe, São Cristóvão, 49100-000, SE, Brazil
Cavendish Laboratory, Department of Physics, University of Cambridge, J.J Thomson Av., Cambridge, CB03 0H3, United Kingdom
Laboratorio de Cerámicos y Nanomateriales
Departamento de Física
Facultad de Ingeniería
Department of Technologies Commercialization
Departamento de Física
Cavendish Laboratory
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