Alumina plasma spraying on 304L stainless steel: Role of a wüstite interlayer
- Goutier, Fabrice
- Valette, Stéphane
- Vardelle, Michel
- Lefort, Pierre
DOIAbstract
International audienceExcellent adhesion values (>70MPa) of alumina coatings achieved by Atmospheric Plasma Spraying (APS) were obtained on pre-oxidized stainless steel (304L), covered with a continuous layer of wüstite (Fe1−xO) surmounted by a very thin magnetite layer. This is due to epitaxial relationships between alumina, magnetite and wüstite, as shown by Transmission Electron Microscopy (TEM), giving a "crystallographic bonding"
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