Oxidation of alloys for energy applications in supercritical CO2 and H2O
Journal Article
·
· Corrosion Science
- National Energy Technology Lab. (NETL), Albany, OR (United States)
- National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, Albany, OR (United States)
To facilitate development of supercritical CO2 (sCO2) power plants, a comparison of the oxidation behavior of austenitic stainless steels and Ni-base alloys in sH2O and sCO2 were made. Experiments were conducted at 730 °C/207 bar (sCO2) and 726 °C/208 bar (sH2O). Ni-base alloys in sCO2 did not exhibit much change with pressure. Ni-base alloys in sH2O had an increase in corrosion rate and the log of the parabolic rate constant was proportional to pressure. Lastly, fine-grain austenitic stainless steels in sCO2 and sH2O were both less protective with pressure as the dense protective chromia scale was replaced with faster growing Fe-oxide rich scales.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1247687
- Report Number(s):
- NETL-PUB-20231; PII: S0010938X16301184
- Journal Information:
- Corrosion Science, Vol. 109, Issue C; ISSN 0010-938X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 64 works
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