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Title: Oxidation of alloys for energy applications in supercritical CO 2 and H 2O

To facilitate development of supercritical CO 2 (sCO 2) power plants, a comparison of the oxidation behavior of austenitic stainless steels and Ni-base alloys in sH 2O and sCO 2 were made. Experiments were conducted at 730 °C/207 bar (sCO 2) and 726 °C/208 bar (sH 2O). Ni-base alloys in sCO 2 did not exhibit much change with pressure. Ni-base alloys in sH 2O 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 sCO 2 and sH 2O were both less protective with pressure as the dense protective chromia scale was replaced with faster growing Fe-oxide rich scales.
Authors:
 [1] ;  [2] ;  [1]
  1. National Energy Technology Lab. (NETL), Albany, OR (United States)
  2. National Energy Technology Lab. (NETL), Albany, OR (United States); AECOM, Albany, OR (United States)
Publication Date:
Report Number(s):
NETL-PUB-20231
Journal ID: ISSN 0010-938X; PII: S0010938X16301184
Type:
Accepted Manuscript
Journal Name:
Corrosion Science
Additional Journal Information:
Journal Volume: 109; Journal Issue: C; Journal ID: ISSN 0010-938X
Publisher:
Elsevier
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Supercritical CO2, Supercritical H2O, austenitic stainless steel, Ni-base superalloys, oxidation
OSTI Identifier:
1247687

Holcomb, Gordon R., Carney, Casey, and Doğan, Ömer N.. Oxidation of alloys for energy applications in supercritical CO2 and H2O. United States: N. p., Web. doi:10.1016/j.corsci.2016.03.018.
Holcomb, Gordon R., Carney, Casey, & Doğan, Ömer N.. Oxidation of alloys for energy applications in supercritical CO2 and H2O. United States. doi:10.1016/j.corsci.2016.03.018.
Holcomb, Gordon R., Carney, Casey, and Doğan, Ömer N.. 2016. "Oxidation of alloys for energy applications in supercritical CO2 and H2O". United States. doi:10.1016/j.corsci.2016.03.018. https://www.osti.gov/servlets/purl/1247687.
@article{osti_1247687,
title = {Oxidation of alloys for energy applications in supercritical CO2 and H2O},
author = {Holcomb, Gordon R. and Carney, Casey and Doğan, Ömer N.},
abstractNote = {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.},
doi = {10.1016/j.corsci.2016.03.018},
journal = {Corrosion Science},
number = C,
volume = 109,
place = {United States},
year = {2016},
month = {3}
}