The corrosion behaviour of a 32Ni-27Cr-0.07Ce steel under simulated coal gasification conditions in the stress-free and stressed state
The corrosion behaviour of the austenitic 32Ni-27Cr-0.07Ce steel AC 66 was studied at 700 C in various S-O-C bearing gases, simulating coal gasification environments, for exposure times up to 5000 h. It was found that relatively small variations in oxygen and sulphur activities can cause a significant change in corrosion behaviour, which varied between a more or less protective oxide scale and significant sulphidation. Deformation was observed to cause significant enhancement of corrosion, particularly along grain boundaries lying perpendicular to the stress axis.
Bibliographic Reference: Article: Corrosion Science, Vol. 32 (1991) No. 2, pp. 151-166
Record Number: 199110515 / Last updated on: 1994-12-02
Original language: en
Available languages: en