Dynamic in situ X-ray observation of a molten steel drop shape change in molten slag
2011 (English)In: Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy, ISSN 0371-9553, Vol. 120, no 1, 49-55 p.Article in journal (Refereed) Published
In the present work, the interfacial reactions between molten synthetic slag (Al2O3-CaO-SiO2- FeO) and liquid iron alloy were investigated at 1873 K with the aid of an X-ray radiographic apparatus. The mother slag consists of 40 mass%CaO, 40 mass%SiO2 and 20 mass%Al2O3.FeO was added to this slag at the experimental temperature, and the movement of the droplet and deformation of the droplet shape were monitored in the dynamic mode. The change of the shape of the droplet is discussed based on the reaction and mass transfer at the slag/metal interface. From the movement of the droplet, interfacial velocity of the metal droplet induced by Marangoni flow was estimated and compared with the results obtained in the present laboratory earlier. The importance of surface velocity values on steel refining process simulations is discussed.
Place, publisher, year, edition, pages
2011. Vol. 120, no 1, 49-55 p.
Interfacial phenomena, Marangoni effect, Molten slag, Molten steel, X-ray observation, Drop breakup, Drop formation, Iron oxides, Liquid metals, Silicon compounds, Slags, Steel foundry practice, X ray radiography, X rays, Iron
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-151436DOI: 10.1179/037195510X12791826058172ScopusID: 2-s2.0-79951780528OAI: oai:DiVA.org:kth-151436DiVA: diva2:748849
QC 201409222014-09-222014-09-222014-09-22Bibliographically approved