Studies of Vaporization of Chromium from Thin Slag Films at Steelmaking Temperatures in Oxidizing Atmosphere
2013 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 44, no 5, 1280-1286 p.Article in journal (Refereed) Published
In the present work, the volatilization of chromium from thin chromium-containing slag film surfaces was studied in oxidizing atmosphere in the temperature range 1673 K to 1873 K (1400 A degrees C to 1600 A degrees C). The slag films on alumina rings were exposed to air or pure oxygen and the loss of Cr from the post-experiment sample films was examined by SEM/WDS analysis. The mass loss of the samples was also monitored during the heat-treatment. The results indicate that chromium loss increased with increase in temperature and oxygen partial pressure was found also to be relatively less as the sample thickness increased. The implications of chromium escape from slags during the tapping of stainless steel slags are discussed.
Place, publisher, year, edition, pages
2013. Vol. 44, no 5, 1280-1286 p.
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-133485DOI: 10.1007/s11663-013-9904-yISI: 000325431900026ScopusID: 2-s2.0-84886095339OAI: oai:DiVA.org:kth-133485DiVA: diva2:661962
FunderMistra - The Swedish Foundation for Strategic Environmental Research
QC 201311052013-11-052013-11-052013-11-14Bibliographically approved