Improved oxidation resistance of ferritic steels with LSM coating for high temperature electrochemical applications

Publication: Research - peer-reviewConference article – Annual report year: 2012

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The effect of single layer La0.85Sr0.15MnO3−δ (LSM) coatings on high temperature oxidation behaviour of four commercial chromia-forming steels, Crofer 22 APU, Crofer 22 H, E-Brite and AL 29-4C, is studied. The samples were oxidized for 140–1000 h at 1123 K in flowing simulated ambient air (air + 1% H2O) and oxygen and corrosion kinetics monitored by mass increase of the materials over time. The oxide scale microstructure and chemical composition are investigated by scanning electron microscopy/energy-dispersive spectroscopy. The kinetic data obey a parabolic rate law. The results show that the LSM coating acts as an oxygen transport barrier that can significantly reduce the corrosion rate.
Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Publication date2012
Volume37
Issue9
Pages8087-8094
ISSN0360-3199
DOIs
StatePublished

Workshop

Workshop7th Petite Workshop on the Defect Chemical Nature of Energy Materials
CountryNorway
CityKongsberg
Period14/05/1117/05/11
CitationsWeb of Science® Times Cited: 4

Keywords

  • Oxide scale growth, High temperature corrosion, Parabolic rate law, Ionic diffusion
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