Annealing temperature effect on the corrosion parameters of autocatalytically produced Ni-P and Ni-P-Al2O3 coatings in artificial seawater

►Charge transfer controls dissolution of Ni-P and Ni-P-Al2O3 in synthetic seawater ►Annealed Ni-P and Ni-P-Al2O3 at 400 and 500 °C present better corrosion parameters ►Drop of porosity on annealed Ni-P, Ni-P-Al2O3 improved their corrosion parameters