Abstract
Following previous results concerning boron alloying by ion implantation or laser surface melting, we study the role of aluminium to improve the high temperature oxidation of iron. Laser alloying has a greater efficiency than ion implantation. The aluminium containing phases formed at the metal-scale interface are responsible for the observed protection. The behaviour of the laser surface alloy is quite comparable to that of conventional alloys Fe-5Al. These two techniques, ion implantation and laser irradiation, seem to be of importance for future developments of corrosion protection.
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