Ferritic stainless steels are promising materials for application in interconnects of solid oxide fuel cells (SOFC). The present problems to be solved urgently for using ferritic stainless steels as interconnects are their rapid increase in electrical resistance and the cathode poisoning caused by evaporation of chromia. In the present study, the NiFe and NiFeCeO₂ alloy coatings have been electro-deposited onto 430 stainless steels (430SS). During oxidation at 800 °C in air, an outer dense NiFe₂O₄ layer and an inner protective Cr₂O₃ layer have thermally grown on the coated samples. The NiFe₂O₄ layer retards the outward migration of chromium effectively. The addition of CeO₂ reduces the growth rate of Cr₂O₃ and decreases the number of pores near the oxide scale/alloy interface. Moreover, a higher electrical conductivity has been achieved by the addition of CeO₂.

铁素体不锈钢是用于固体氧化物燃料电池（SOFC）互连的有前途的材料。使用铁素体不锈钢作为互连件迫切需要解决的当前问题是它们的电阻快速增加和由氧化铬的蒸发引起的阴极中毒。在本研究中，Ni Fe和NiFe CeO ₂合金涂层已电沉积到430不锈钢（430SS）上。在800°C的空气中氧化过程中，外层致密NiFe ₂ O ₄层和内层Cr ₂ O ₃保护层在涂层样品上热生长。NiFe ₂ O ₄层有效地阻止了铬的向外迁移。CeO ₂的添加降低了Cr ₂ O ₃的生长速率并减少了氧化皮/合金界面附近的孔数量。此外，通过添加CeO ₂已经实现了更高的电导率。