Optimization of composition and structure of electrodeposited Ni-Cr composites for increasing the oxidation resistance

► Ni matrix composite dispersing ∼14 μm-sized Cr particles was electrodeposited. ► The composite containing 34 wt.% Cr forms a NiO scale in air at 900 °C. ► The composite with an increase of the Cr content to 47 wt.% forms a Cr2O3 scale. ► Annealing can convert the Ni-34Cr composite from a NiO former to a Cr2O3. ► Adding CeO2 further decreases the oxidation of the annealed Ni-34Cr composite.