Indentation property and corrosion resistance of electroless nickel-phosphorus coatings deposited on austenitic high-Mn TWIP steel

The results of the microindentation tests conducted on raw TWIP steel (black curve), amorphous/as-plated (green curve), annealed at 350 °C (blue curve) and annealed at 700 °C (red curve) at room temp.: (a) the load-penetration depth (P-h) curves, and (b) indentation harness and plastic indentation derived from (a).