Oxidation of iron aluminide based composites

Iron aluminides, including Fc3 A1 and FeAl, are of interest for high-temperature stmctural applications since they have relatively high melting points, excellent oxidation, carburisation, sulfidation, and hot corrosion resistance, relatively low density and low material cost. The major advantages that can be derived from the use of iron aluminides include the following [215,216]  

Their density is lower than that of many stainless steels and therefore they offer better strength-to-weight ratio. 

Their resistance to sulfidation in H2S and SO2 gases is much better than that of any other iron- or nickel-based alloys. 

They have a high electrical resistivity which increases with temperature. 

They have good corrosion resistance in many aqueous environments. 

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