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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 18b
SUMMARY:Consequences of an increased content of tramp elements in steel on the wetting conditions in the system steel-inclusion-refractory
DESCRIPTION:The demand for higher scrap rates in European steel plants leads to increased amounts of tramp elements in steels, like copper, molybdenum and tin, and their further enrichment due to lack of possibilities for their removal. While other elements, especially the 16th group of the PSE like oxygen or sulfur, are well investigated, the effect of tramp elements on interfacial properties remain unclear. These phenomena are of high importance for different multiphase processes. While poor wetting of inclusions by steel at refining steps is preferred to transport inclusions from liquid steel to the slag, it can be detrimental in continuous casting due to the increased deposition of inclusions in the submerged entry nozzle and finally resulting in clogging. 
In this work an industrial medium carbon steel has been alloyed with ultra-pure tramp elements, namely Cu, Mo and Sn. The amounts of these increase gradually from standard-confirm levels up to values supposed to occur in future steel scraps. These samples are studied by means of drop shape analysis to quantify the influence of these impurities on the wetting angle on dense alumina and zirconia plates. With this method temperature and time dependency can be observed. Furthermore, the oxidic substrates and steel droplets are examined by metallography and SEM/EDS after the experiments to determine possible reactions. Thermodynamic calculations using FactSage are additionally applied.
CLASS:PUBLIC
DTSTART:20230615T092000
DTEND:20230615T094000
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