| Titre : | 330Cb alloy (Fe-35Ni-18Cr-1Nb-2Si) oxidation study between 800 and 1000 °C (2011) |
| Auteurs : | C. Issartel, Auteur ; H. Buscail, Auteur ; C. T. Nguyen, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Materials and corrosion (Vol. 61 N° 11, Novembre 2010) |
| Article en page(s) : | pp. 929–938 |
| Note générale : | Génie mécanique |
| Langues : | Anglais |
| Tags : | 330Cb ; conveyor units ; Fe-35Ni-18Cr-1Nb-2Si ; high temperatures ; in situ XRD ; Niobium ; oxidation ; silicon |
| Résumé : | The 330Cb alloy (Fe-35Ni-18Cr-1Nb-2Si) has been oxidized, in air, in the 800–1000 °C temperature range. Results show the formation of a chromia layer acting as a good diffusion barrier under isothermal conditions. Nevertheless, some oxide scale spallation is generally observed after cooling to room temperature. A fine and adherent chromia scale is only obtained after short-term oxidation at 800 °C. In this case, the scale is probably too fine to expect a protection against carburization. At 900 °C we have observed that the scale spalled off on the niobium rich alloy areas. At 1000 °C the scale adherence is very bad. This study shows that the oxide scale adherence is decreased when the 330Cb alloy oxidation duration is increased. |
| En ligne : | http://onlinelibrary.wiley.com/doi/10.1002/maco.200905442/abstract |
