Abstract
Oxidation resistance, and the long- term stability of interconnects in solid oxide fuel cells, can be ameliorated by the use of a protective, effective, relatively dense and well adherent, spinel coating. In this study, the pack cementation method was employed to coat cobalt onto AISI 430 ferritic stainless steel. Isothermal oxidation, cyclic oxidation, and oxidation at different temperatures (600–900 °C) were applied to evaluate the parabolic rate constant (kp). In each test, the coated samples demonstrated lower kp, indicating that the coating layer was effective. The formation of MnCo2O4 and CoCr2O4 spinels, during the oxidation, improved the oxidation resistance of AISI 430 ferritic stainless steel.
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This research has been done by cooperation of Iran New Energies Organization and the authors wish to thank this organization for providing research funding.
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Ebrahimifar, H., Zandrahimi, M. Evaluation of the Parabolic Rate Constant During Different Types of Oxidation Tests for Spinel Coated Fe–17%Cr Alloy. Oxid Met 75, 125–141 (2011). https://doi.org/10.1007/s11085-010-9224-4
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DOI: https://doi.org/10.1007/s11085-010-9224-4