Corrosion and radiation resistant nanoceramic coatings for lead fast reactors

•Al2O3 coatings grown on 1515Ti steel plates, cylinders and tubes.•Coatings retain structural integrity upon thermal cycling, nanoimpact and scratch.•Samples exposed to static Pb (550°C, 1000h, 4000h, 10−8wt.% O).•Selective leaching of Ni, Mn and Cr observed in uncoated samples.•Corrosion avoided in coated samples, either pristine or irradiated.