High temperature oxidation of chromium: Kinetic modeling and microstructural investigation
2013 (English)In: Solid State Ionics, ISSN 0167-2738, E-ISSN 1872-7689, Vol. 240, 41-50 p.Article in journal (Refereed) Published
Using CALPHAD methods, Cr2O3 growth on pure Cr is modeled using DICTRA and the vacancy model for diffusion. The results are compared with thermobalance and TEM experiments at 625 and 700 degrees C in O-2. The experimental scatter is significant, leading to a compromise suggestion. With the experimental conditions from the furnace exposures in this work, optimized mobilities are validated with a series of oxidation simulations. Despite the complex microstructure and initial growth rate variations, it is possible to reproduce the experimental oxide thicknesses with good accuracy, allowing for extension to multicomponent systems.
Place, publisher, year, edition, pages
2013. Vol. 240, 41-50 p.
High temperature corrosion, Stainless steel, SEM, TEM, Kinetic parameters
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-124286DOI: 10.1016/j.ssi.2013.02.017ISI: 000319242600006ScopusID: 2-s2.0-84876242848OAI: oai:DiVA.org:kth-124286DiVA: diva2:634907
FunderSwedish Foundation for Strategic Research
QC 201307022013-07-022013-06-282014-10-23Bibliographically approved