Surface modification of ferritic and Ni based alloys for improved oxidation resistance of SOFC interconnect applications

Conference · Mon Aug 01 00:00:00 EDT 2005 · Ceramic Engineering and Science Proceedings

OSTI ID:901110

Jablonski, Paul D; Alman, David E; Kung, Steven C ^[1]

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1. SOFCo-EFS, Alliance, OH

This research is aimed at evaluating a surface modification of ferritic stainless steels (Type-430 and Crofer 22APU) and nickel-base alloys (Haynes 230) for use in the SOFC temperature range of 700 to 800°C. A surface treatment was devised to enhance the stability of the base metal oxide that forms and to reduce the oxidation rate of the materials at high temperature. Oxidation tests (in wet air; treated and untreated) were conducted at 800°C to evaulate the corrosion resistance of the alloys. It was found that the surface treatment improved the oxidation resistance of all the alloys tested. However, the treatment improved the performance of 430SS more than that of the other alloys.

• Research Organization: Albany Research Center (ARC), Albany, OR (United States)
• Sponsoring Organization: USDOE - Office of Fissile Materials Disposition (MD)
• OSTI ID: 901110
• Report Number(s): DOE/ARC-2005-084; TRN: US200713%%141
• Journal Information: Ceramic Engineering and Science Proceedings, Vol. 26, Issue 4; Conference: 29th International Conference on Advanced Ceramics and Composites - Advances in Solid Oxide Fuel Cells, Cocoa Beach, FL, Jan. 23-28, 2005
• Publisher: Wiley & Sons, Hoboken, NJ (for the American Ceramic Society)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AIR
ALLOYS
CERAMICS
CORROSION RESISTANCE
MODIFICATIONS
OXIDATION
OXIDES
PERFORMANCE
SOLID OXIDE FUEL CELLS
STABILITY
STAINLESS STEELS
SURFACE TREATMENTS