Abstract
The aim of this work was to evaluate the corrosion and abrasive-wear resistance of plasma-nitrided PM tool steel with increased content of niobium (2.6 wt.%). It was found that the wear behaviour was significantly influenced not only by surface hardness, but also by other factors, mainly by surface roughness and by the presence and properties of a compound layer. The maximum wear resistance was achieved by plasma nitriding at 500 °C for 180 min. It was also shown that nitriding led to an increase of the free corrosion potential and that the compound layer on the surface acted as a barrier against corrosion attack. The nitriding conditions that resulted in the maximum wear resistance also provided significantly increased corrosion resistance. In addition, it was observed that the conventional gas nitriding conducted at the same conditions did not produce such significant improvement of the wear resistance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
