Abstract
2205 duplex stainless steel (2205DSS) was nitrided at 420 °C by plasma nitriding in an ammonia atmosphere under anodic potential. The nitrided layer was characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The impact of the nitrided layer on the corrosion and wear resistance of 2205DSS was evaluated through electrochemical polarization tests and pin-on-disc wear experiments. The results revealed that nitrogen-expanded austenite was formed on the substrate, and the nitrided layer developed on the samples nitrided for 4 and 10 h enhanced both the corrosion and wear resistance of 2205DSS.
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