High temperature corrosion of candidate heat exchanger alloys in a dry-feed entrained slagging gasifier atmosphere
This paper is concerned with corrosion studies on a series of alloys exposed to a non-equilibrated CO-based laboratory atmosphere containing 0.2 % H(2)S, simulating that of a dry-feed entrained slagging gasifier. The alloys selected for this study were MA 956, HR 160, Cronifer 45TM, HR 3C and 26Cr-37Ni alloy containing 3 % V. Results obtained on specimens exposed intermittently for up to 2000 h at 600 C have enabled comparisons to be made between the corrosive degradation of each alloy. Under these environmental conditions, sulphide scales formed on all alloys, although significant differences in corrosion rate and depth of attack between the different materials were noted. The higher Si-containing alloys appeared to have superior corrosion resistance, the 30 % Co-containing alloy, HR 160, containing approximately 2.7 % Si being the most resistant.
Bibliographic Reference: Paper presented: International Conference - Materials for Advanced Power Engineering 1994, Liège (BE), October 3-6, 1994
Availability: Available from (1) as Paper EN 38352 ORA
Record Number: 199410850 / Last updated on: 1994-11-28
Original language: en
Available languages: en