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Electroless Ni-Fe-P Alloy on Ferritic Stainless Steel Solid Oxide Fuel Cell Interconnect

[+] Author Affiliations
Shujiang Geng, Hui Zhao

Northeastern University, Shenyang, Liaoning, China

Paper No. FuelCell2010-33074, pp. 229-232; 4 pages
doi:10.1115/FuelCell2010-33074
From:
  • ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1
  • Brooklyn, New York, USA, June 14–16, 2010
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4404-5 | eISBN: 978-0-7918-3875-4
  • Copyright © 2010 by ASME

abstract

In this study, Ni-Fe-P alloy layer was deposited on the ferritic stainless steel by means of a cost-effective technique of electroless method. After thermal exposure at 800°C in air corresponding to the environment of the SOFC cathode, the oxidation kinetics indicated that the mass gain of steel with Ni-Fe-P alloy layer was higher than that of the steel substrate on which a Cr2 O3 layer was mainly grown. A double-layer oxide scale with a NiO/(Ni,Fe)3 O4 /(Ni,Cr)3 O4 outer layer and a protective Cr2 O3 inner layer was formed on the steel with Ni-Fe-P alloy. The formation of the oxide outer layer was highly desirable to prevent the evaporation of the chromia inner layer developed from the substrate steel, and reduced the scale area specific resistance (ASR).

Copyright © 2010 by ASME

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