The effect of pre-oxidation treatment on the plasticity behavior of B2 iron aluminide

► The scale on the FeAlCrZrB alloy after oxidation consisted of γ, θ and α aluminium oxide forms. ► The oxide layers formed in the temperature range 700-1000 °C appear to be well bonded with the FeAl substrate. ► The formation of protective oxide layers can alleviated the environmental embrittlement of an B2 FeAl alloys.