Pre-oxidation of porous ferritic Fe22Cr alloys for lifespan extension at high-temperature
Artikel i vetenskaplig tidskrift, 2024

Pre-oxidation of porous ferritic Fe22Cr alloys was extensively studied in this paper. Weight gain measurements and SEM analysis revealed that pre-oxidation performed at 900°C for 40 min increased the lifespan of the alloy. A Cr evaporation study did not disclose any significant influence of the pre-oxidation process on the Cr content in the alloy. For a more detailed assessment, TEM imaging and X-ray tomography measurements of pre-oxidized samples were performed. These analyses showed that alteration in the grain and grain boundary diffusion fluxes might be the key for explaining the corrosion prevention role of pre-oxidation.


Porous alloy

Tomographic microscopy

Lifespan prediction

Fuel cells


D. Koszelow

Politechnika Gdańska

Małgorzata Makowska

Paul Scherrer Institut

Federica Marone

Paul Scherrer Institut

G. Cempura

Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie

Matthieu Tristan Tomas

Chalmers, Kemi och kemiteknik, Energi och material

Jan Froitzheim

Chalmers, Kemi och kemiteknik, Energi och material

Sebastian Molin

Politechnika Gdańska

Corrosion Science

0010-938X (ISSN)

Vol. 234 112129


Annan kemi

Metallurgi och metalliska material




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