Oxidation of Co- and Ce-nanocoated FeCr steels: A microstructural investigation

► 640 nm Co coating strongly inhibits Cr volatilization. ► 640 nm Co coating has only minor effects on oxidation rate. ► 10 nm Ce coating decreases the oxidation rate. ► 10 nm Ce coating has no significant effects on chromium volatilization. ► 10 nm Ce + 640 nm Co reduces Cr evaporation and the rate of alloy oxidation.