Interaction of exogenous refractory oxide nanoparticles with tin in iron melts at PHe + 10%H2 = 0.2 MPa

V. T. Burtsev, S. N. Anuchkin, A. V. Samokhin

Abstract


The processes of interaction of exogenous nanoparticles Al2O3, MgO, ZrO2 and Y2O3 with iron melts containing surfactant-tin have been studied.The effect of size factors on the degree of tin removal, the time of isothermal holding after the introduction of nanoparticles, the type of nanoparticles, and the concentration of tin in the metal was investigated. It was shown that the extreme values functions of ?Sn were: in the system Fe-Sn-Al2O3 (57 nm) - 18.2 rel.%, in Fe-Sn-Al2O3 (41 nm) - 23.3 rel.%, in Fe-Sn-MgO (28 nm) - 24.4 rel.%, in Fe-Cr-Sn-ZrO2 (83 nm) - 15.2 rel.%, in Fe-Cr-Sn-Y2O3 (168 nm) - 7.4 rel.% and in steel 10G2FB-Al2O3 (41 nm) - 6.0 rel. %. Found that the degree of removal of impurities is significantly influenced by the composition of the metal, the surface-active properties of the impurity and the kinetics of the interaction of nanoparticles with surfactants

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DOI: http://dx.doi.org/10.24892/RIJIE/20200106

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