Conference paper · Journal article
Improved oxidation resistance of ferritic steels with LSM coating for high temperature electrochemical applications
In
International Journal of Hydrogen Energy
—
2012, Volume 37, Issue 9, pp. 8087-8094
Abstract
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.
| Language: | English |
|---|---|
| Year: | 2012 |
| Pages: | 8087-8094 |
| Proceedings: | 7th Petite Workshop on the Defect Chemical Nature of Energy Materials |
| ISSN: | 18793487 and 03603199 |
| Types: | Conference paper and Journal article |
| DOI: | 10.1016/j.ijhydene.2011.11.138 |
| ORCIDs: | Chen, Ming and Hendriksen, Peter Vang |
