Plasma nitriding of 90CrMoV8 tool steel for the enhancement of hardness and corrosion resistance

► Modification of 90CrMoV8 steel by plasma nitriding for wood machining. ► Enhancement of hardness and wear resistance without losing intrinsic protectiveness. ► Electrochemical tests in wood juice as the electrolyte. ► After plasma treatment high and durable corrosion resistance. ► Optimal nitriding parameters are 500 °C, 10 hours for best good behaviors.