Corrosion of Alloy 800H and the effect of surface-applied CeO(2) in a sulphidizing/oxidizing/carburizing environment at 700 C
The corrosion behaviour of a wrought austenitic Fe-20Cr-32Ni steel, Alloy 800H, was studied in a simulated coal-gasification atmosphere at 700 C for exposure times up to 2500 hr. The influence of preoxidation and CeO(2)-surface application followed by preoxidation on the corrosion resistance of this material was assessed. The improvement in the corrosion resistance due to preoxidation of the blank material was small, whereas the effect of the CeO(2)-treatment was significant. This difference is thought to be due to better scale adherence in the case of CeO(2)-surface application.
Bibliographic Reference: Article: Oxidation of Metals, Vol. 33 (1990) Nos. 5/6, pp. 371-397
Record Number: 199011444 / Last updated on: 1994-12-02
Original language: en
Available languages: en