Effect of spinel and perovskite coatings on the long term oxidation of a ferritic stainless steel in H-2/H2O atmosphere
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Effect of spinel and perovskite coatings on the long term oxidation of a ferritic stainless steel in H-2/H2O atmosphere |
| Type de publication | Journal Article |
| Year of Publication | 2019 |
| Auteurs | Ardigo-Besnard M.R, Popa I., Chevalier S. |
| Journal | CORROSION SCIENCE |
| Volume | 148 |
| Pagination | 251-263 |
| Date Published | MAR |
| Type of Article | Article |
| ISSN | 0010-938X |
| Mots-clés | High temperature corrosion, Oxidation, Oxide coatings, SEM, Stainless steel, X-ray diffraction |
| Résumé | In order to improve the oxidation behaviour of AISI441 ferritic stainless steel in H-2/H2O atmosphere at 800 degrees C, four oxide coatings were tested: two perovskites (La0.8Sr0.2MnO3 and LaNi0.6Fe0.4O3) deposited by screen printing and two spinels (MnCo2O4 and Co3O4) obtained by PVD technique. Isothermal oxidation tests performed up to 3000 h showed that the coating presence avoided Fe oxides growth, which occurs for the raw alloy in the same conditions. Moreover, a protective (Cr,Mn)(3)O-4/Cr2O3 layer formed between the substrate and the coating. Any presence of Cr was not detected within the coatings, indicating that all compositions were efficient in preventing Cr evaporation. |
| DOI | 10.1016/j.corsci.2018.12.034 |