The Al/Al2O3 bilayer coatings have been deposited on DK45 steel and ALTi alloyby using the ion beam assisted deposition (IBAD) method. Sample’s corrosionresistance was evaluated by electrochemical method
and their surface hardness andsample’s properties was studied. Tt was shown that the deposition of AL/Al2O3 bilayercan greatly improve sample’s corrosion resistance