Tribocorrosion behaviour of powder metallurgy duplex stainless steels sintered in nitrogen

► Duplex rich in ferrite powder shows lower scar depth under dry sliding. ► Powder metallurgy samples at open circuit potential show cathodic shift when sliding. ► Coefficients of friction are related to anodic polarization curves under no-sliding. ► Tribocorrosion behaviour depends on the applied anodic potential.