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Title: Oxidation of alloys for energy applications in supercritical CO2 and H2O

Journal Article · · Corrosion Science
 [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)

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
Citation Metrics:
Cited by: 64 works
Citation information provided by
Web of Science

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Cited By (7)

Effect of 730 °C Supercritical Fluid Exposure on the Fatigue Threshold of Ni-Based Superalloy Haynes 282 journal June 2019
High-temperature corrosion resistance of nickel-base alloy 617 in supercritical carbon dioxide environment journal January 2020
Effect of high-temperature supercritical carbon dioxide exposure on the microstructure and tensile properties of diffusion-bonded Alloy 690 journal November 2019
Hydrogen transport during steam oxidation of iron and nickel alloys journal March 2019
Effect of Surface Finish on High-Temperature Oxidation of Steels in CO2, Supercritical CO2, and Air journal October 2019
High-Temperature Oxidation of Commercial Alloys in Supercritical CO2 and Related Power Cycle Environments journal June 2018
Numerical Analysis on Heat Transfer Characteristics of Supercritical CO2 in Heated Vertical Up-Flow Tube journal February 2020

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