Influence of Ni deposition and subsequent N+ ion implantation at different substrate temperatures on nano-structure and corrosion behaviour of type 316 and 304 stainless steels

► Enhancement of corrosion resistance of stainless steel by nickel nitride coating. ► Correlation between the structural analyses and the potentiodynamic results is achieved. ► Optimum corrosion results is achieved for critical surface roughness and annealing temperature.