Oxidation and electrical behavior of AISI 430 coated with cobalt spinels for SOFC interconnect applications

► Pack cementation of AISI 430 steel in a cobalt base-pack mixture. ► Formation of MnCo2O4, CoCr2O4 and CoFe2O4 spinels during oxidation. ► Improvement of isothermal and cyclic oxidation resistance of coated samples. ► Improvement of electrical conductivity of coated AISI 430 steel.