Chapter 21. High Temperature Corrosion Behavior of Oxidation Resistant Alloys Under SOFC Interconnect Dual Exposures

  1. Narottam P. Bansal,
  2. Andrew Wereszczak and
  3. Edgar Lara-Curzio
  1. Zhenguo Yang,
  2. Greg W. Coffey,
  3. Joseph P. Rice,
  4. Prabhakar Singh,
  5. Jeffry W. Stevenson and
  6. Guan-Guang Xia

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291337.ch21

Advances in Solid Oxide Fuel Cells II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 4

Advances in Solid Oxide Fuel Cells II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 4

How to Cite

Yang, Z., Coffey, G. W., Rice, J. P., Singh, P., Stevenson, J. W. and Xia, G.-G. (2006) High Temperature Corrosion Behavior of Oxidation Resistant Alloys Under SOFC Interconnect Dual Exposures, in Advances in Solid Oxide Fuel Cells II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 4 (eds N. P. Bansal, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291337.ch21

Author Information

  1. Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA 99352

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2006

ISBN Information

Print ISBN: 9780470080542

Online ISBN: 9780470291337

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Keywords:

  • hydrogen;
  • lanthanum;
  • environment;
  • chromite;
  • atmosphere

Summary

Metals and alloys are considered as promising candidates to construct interconnects in intermediate temperature (600–800°C) solid oxide fuel cell (SOFC) stacks. During SOFC operation, the interconnects are working in a dual environment, i. e. simultaneously exposed to air at cathode side and a fuel (e. g. hydrogen) at the anode side. Our recent studies found the oxidation behavior of metals and alloys in the dual environment can be significantly different from that in a single oxidizing or reducing atmosphere exposure. The anomalous oxidization is attributed to hydrogen diffusion flux from the fuel side to the air side under the influence of a hydrogen gradient across the stainless steel interconnects. This paper summarizes our study on a number of selected metals and alloys under the dual environment.