Abstract
A study has been made on the oxidation behaviours of Fe-14Cr alloys with 0.1, 0.3 and 0.6 mass%Ti at temperatures between 1073 and 1373 K in atmospheric oxygen. The Ti addition has increased the isothermal oxidation resistance in every alloy. The amount of Ti content at which the highest resistance is shown in the system has been found to be around 0.1 mass%. The 0.6 mass%Ti alloy has shown the lowest resistance, but this alloy is still far more oxidation resistant than the base alloy. In every alloy the internal oxidation of Ti has occurred, the degree of which being dependent on the amount of Ti added. Cavity formation at the scale/alloy interface has been observed only in 0.3 mass%Ti alloy.
