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Oxidation kinetics of Fe-Cr and Fe-V liquid alloys under controlled oxygen pressures
Division of Materials Process Science, Royal Institute of Technology (KTH).
Division of Materials Process Science, Royal Institute of Technology (KTH).
2010 (English)In: Energy technology 2010: conservation, greenhouse gas reduction and management, alternative energy sources ; proceedings of symposia sponsored by the Light Metals Division of the Minerals, Metals & Materials Society (TMS) ; held during TMS 2010 annual meeting and exhibition, Seattle, Washington, USA, February 14 - 18, 2010 / [ed] Neal R Neelameggham, Warrendale, Pa: TMS , 2010, 215-230 p.Conference paper (Refereed)
Abstract [en]

In order to make the stainless steel making process efficient and environment friendly, it is essential to minimize the loss of chromium to the slag phase. With a view to investigate the advantages of using CO2 to attain moderate oxygen partial pressures in the oxidant gas during the decarburizations of stainless steel, the present experiments were carried out to understand the oxidation kinetics of Fe-Cr alloys and Fe-V alloy with gas mixtures containing CO2 In the present work, the oxidation behavior of Fe-Cr and Fe-V was examined by thermogravimetric analysis (TGA). Various mixtures of O2 and CO2 were used as the oxidant gas and the oxidation rate was followed by the weight changes as a function of time. The experiments demonstrated that the oxidation rate is independent of temperature at present experimental situation, but has strongly related to the Cr-content of the alloy as well as the oxygen partial pressure in the oxidant gas mixture. The wetting of alumina by the iron drop and the change of the drop shape during the course of the oxidation were investigated by X-ray radiography

Place, publisher, year, edition, pages
Warrendale, Pa: TMS , 2010. 215-230 p.
Identifiers
URN: urn:nbn:se:ltu:diva-40584ScopusID: 77952358771Local ID: fc37d314-b479-446f-9e6d-582a1005cb60ISBN: 9780873397490OAI: oai:DiVA.org:ltu-40584DiVA: diva2:1014106
Conference
TMS Annual Meeting and Exhibition : 14/02/2010 - 18/02/2010
Note
Upprättat; 2012; 20121218 (andbra)Available from: 2016-10-03 Created: 2016-10-03

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Nurni, Viswanathan

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