Bardi, U.Caporali, S.Craig, M.Giorgetti, A.Perissi, I.Nicholls, John R.2011-03-182011-03-182009-02-28U. Bardi, S. Caporali, M. Craig, A. Giorgetti, I. Perissi, J.R. Nicholls, Electrodeposition of aluminium film on P90 Li-Al alloy as protective coating against corrosion, Surface and Coatings Technology, Volume 203, Issues 10-11, 25 February 2009, Pages 1373-1378,0257-8972http://dx.doi.org/10.1016/j.surfcoat.2008.11.003http://dspace.lib.cranfield.ac.uk/handle/1826/3211In this paper we report on the electrodeposition of thin aluminium layers on P90 lithium–aluminium alloy at room temperature from a chloroaluminate ionic liquid (1-butyl-3-methyl imidazolium heptachloroaluminate [BMIm]Al2Cl7). We found that the treatment of the P90 sample's surface is a key point to obtain good quality coatings. On freshly mechanically polished surfaces, thin (about 24 µm), homogeneous and dense aluminium layers were obtained at 10 µm h− 1 deposition rate. Finally, the corrosion resistance of the uncoated and Al-coated samples was investigated by means of electrochemical techniques such as open-circuit voltage curves, impedance spectroscopy and potentiodynamic polarization in 3.5 wt.% NaCl aqueous solution. We found that the protective aluminium layer significantly reduces the corrosion rates of the P90 Li–Aen-UKIonic liquidsElectrodepositionLithium-aluminium alloyCorrosionXPSArticle