Observations of pulsating Marangoni phenomena during the local oxidation of deoxidized liquid steel

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Restricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article 1998Observations of pulsating Marangoni phenomena during the local oxidation of deoxidized liquid steelPhil. Trans. R. Soc. A.356941–953http://doi.org/10.1098/rsta.1998.0198SectionRestricted accessObservations of pulsating Marangoni phenomena during the local oxidation of deoxidized liquid steel Published:15 April 1998https://doi.org/10.1098/rsta.1998.0198AbstractStudies have been made by means of a high–speed video technique of the surface of Al–Si–Mn deoxidized liquid steel at about 1600°C during local reoxidization by gently inpinging flows of CO2–containing gases. Expanding ‘necklaces’ of alumina oxidation product have been observed to form at frequencies of up to about 5 Hz and to travel at velocities of up to 250 mm per s–1 near to the gas inlet tube, depending on the experimental conditions. the pulsation frequency appears to be controled by the rate of diffusion of aluminium to the surface. the effects of additions of the surfactants sulphur and selenium on the velocity of the moving front are shown to be consistent with the processes being surface tension driven. Previous ArticleNext Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited by Wang J, Chen X, Han L, Jiao K, Wu Y and Zheng Z (2022) Flow and Heat Transfer Characteristics of Melt Droplet with Non-uniform Heating Temperature, ISIJ International, 10.2355/isijinternational.ISIJINT-2022-026, 62:8, (1595-1606), Online publication date: 15-Aug-2022. Cao W, Muhmood L and Seetharaman S (2011) Sulfur Transfer at Slag/Metal Interface—Impact of Oxygen Potential, Metallurgical and Materials Transactions B, 10.1007/s11663-011-9602-6, 43:2, (363-369), Online publication date: 1-Apr-2012. Elfsberg J and Matsushita T (2011) Measurements and Calculation of Interfacial Tension between Commercial Steels and Mould Flux Slags, steel research international, 10.1002/srin.201000221, 82:4, (404-414), Online publication date: 1-Apr-2011. Sun S, Zhang L and Jahanshahi S (2003) From viscosity and surface tension to marangoni flow in melts, Metallurgical and Materials Transactions B, 10.1007/s11663-003-0019-8, 34:5, (517-523), Online publication date: 1-Oct-2003. Evans T and Strezov L (2000) Interfacial heat transfer and nucleation of steel on metallic substrates, Metallurgical and Materials Transactions B, 10.1007/s11663-000-0083-2, 31:5, (1081-1089), Online publication date: 1-Oct-2000. Chung Y and Cramb A (2000) Dynamic and equilibrium interfacial phenomena in liquid steel-slag systems, Metallurgical and Materials Transactions B, 10.1007/s11663-000-0072-5, 31:5, (957-971), Online publication date: 1-Oct-2000. This Issue15 April 1998Volume 356Issue 1739Discussion Meeting Issue ‘Marangoni and interfacial phenomena in materials processing’ organized by E. D. Hondros, M. McLean and K. C. Mills Article InformationDOI:https://doi.org/10.1098/rsta.1998.0198Published by:Royal SocietyPrint ISSN:1364-503XOnline ISSN:1471-2962History: Published online15/04/1998Published in print15/04/1998 License: Citations and impact Keywordslocal oxidationMarangoni flowsurface velocitieseffect of surfactantssteel reoxidationalumina formation