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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.

Additional information

Authors: STROOSNIJDER M F, JRC Petten (NL);GUTTMANN V, JRC Petten (NL);DE WIT J H W, Delft University of Technology, Laboratory for Materials Science, Delft (NL)
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
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