Abstract

Model alloys Fe–9Cr, Fe–20Cr and Fe–20Cr–20Ni (wt.%) with 0.1% Ce or 2% Mn were exposed to Ar–20CO2–20H2O gas at 818°C, and the results compared with those of reaction with Ar–20CO2. Water vapour accelerated the corrosion of all Fe–9Cr alloys, and hastened the onset of breakaway oxidation for Fe–20Cr and Fe–20Cr–20Ni. Manganese additions prevented breakaway of the ferritic alloy, and retarded it for the austenitic, but cerium had no effect. All alloys except Mn-bearing variants were simultaneously carburised. Beneficial effects of manganese on high chromium content alloys are discussed in terms of scale phase constitutions.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.