Corrosion and creep behaviour of Alloy 800H in sulphidizing/oxidizing/carburizing environments at 700 C - Part I : Corrosion behaviour in the stress free and the stressed state
The corrosion behaviour of the austenitic 32Ni-20Cr steel Alloy 800H was investigated in several S-O-C bearing gas mixtures simulating coal gasification environments at 700 C for up to 5000 h. It is shown that relatively small changes in oxygen and sulphur activites can cause a significant change in corrosion behaviour. Moreover, creep deformation leads to a marked enhancement of the corrosive attack which takes place especially along grain boundaries lying perpendicular to the stress axis.
Bibliographic Reference: Article: Werkstoffe und Korrosion, Vol. 41 (1990) pp. 503-507
Record Number: 199110514 / Last updated on: 1994-12-02
Original language: en
Available languages: en