Oxidation Resistance of Low Carbon Stainless Steel for Applications in Solid Oxide Fuel Cells

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Alloys protected from corrosion by Cr2O3 (chromia) are recognized as potential replacements for LaCrO3–based ceramic materials currently used as bipolar separators (interconnects) in solid oxide fuel cells (SOFC). Stainless steels gain their corrosion resistance from the formation of chromia, when exposed to oxygen at elevated temperatures. Materials for interconnect applications must form uniform conductive oxide scales at 600–800o C while simultaneously exposed to air on the cathode side and mixtures of H2 - H2O, and, possibly, CHx and CO - CO2 on the anode side. In addition, they must possess good physical, mechanical, and thermal properties. Type 316L stainless steel ... continued below

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Ziomek-Moroz, Margaret; Covino, Bernard S., Jr.; Holcomb, Gordon R.; Cramer, Stephen D.; Bullard, Sophie J.; Matthes, Steven A. et al. October 1, 2003.

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Alloys protected from corrosion by Cr2O3 (chromia) are recognized as potential replacements for LaCrO3–based ceramic materials currently used as bipolar separators (interconnects) in solid oxide fuel cells (SOFC). Stainless steels gain their corrosion resistance from the formation of chromia, when exposed to oxygen at elevated temperatures. Materials for interconnect applications must form uniform conductive oxide scales at 600–800o C while simultaneously exposed to air on the cathode side and mixtures of H2 - H2O, and, possibly, CHx and CO - CO2 on the anode side. In addition, they must possess good physical, mechanical, and thermal properties. Type 316L stainless steel was selected for the baseline study and development of an understanding of corrosion processes in complex gas environments. This paper discusses the oxidation resistance of 316L stainless steel exposed to dual SOFC environment for ~100 hours at ~900oK. The dual environment consisted of dry air on the cathode side of the specimen and a mixture of H2 and 3% H2O on the anode side. Post - corrosion surface evaluation involved the use of optical and scanning electron microscopy and x-ray diffraction analyses.

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  • Fuel Cells: Materials, Processing, and Manufacturing Technologies, symposium held at ASM Materials Solution Conference 2003, Pittsburgh, PA, Oct. 13-16, 2003

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  • Report No.: DOE/ARC-2004-046
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 901912
  • Archival Resource Key: ark:/67531/metadc888194

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • October 1, 2003

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 4, 2016, 2:10 p.m.

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Ziomek-Moroz, Margaret; Covino, Bernard S., Jr.; Holcomb, Gordon R.; Cramer, Stephen D.; Bullard, Sophie J.; Matthes, Steven A. et al. Oxidation Resistance of Low Carbon Stainless Steel for Applications in Solid Oxide Fuel Cells, article, October 1, 2003; Albany, Oregon. (digital.library.unt.edu/ark:/67531/metadc888194/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.