A Model for Unconventional Glow Discharge Nitriding of Grade 2 Titanium

T. Frączek, M. Olejnik, Częstochowa University of Technology, Częstochowa Poland An analysis of the infl uence of diff erent parameters of the ion nitriding process conducted in a H2 + N2 atmosphere on the properties of the surface layer of Grade 2 titanium was carried out in the study. This allowed a model for ion nitriding of technical titanium to be developed. The equipment used in the experimental work included a JON-600 current glow-discharge furnace. It was found that the process of cathode nitriding with the use of the active screen led to an increase in the concentration of nitrogen in the surface layer and in the relative volume of nitrides. A factor which determines the qualitative and quantitative characteristics of phenomena that occur in the presence of the active screen is the high concentration and high energy level of nitrogen ions which interact with base material during nitriding.