High temperature wettability of ion implanted multicomponent CrAlSiN films by molten glass

The phenomenon of glass-to-mold sticking is a major problem for industrial glass forming processes. Recently, multicomponent CrAlSiN films attracted considerable industrial interest because of their excellent tribological performance and high oxidation resistance at high temperatures exceeding 800 °C. Metal plasma ion implantation has being successfully developed for further improving wear, corrosion and physical properties of engineering materials. In this study, Mo and carbon ions were implanted into the multicomponent CrAlSiN film by using a metal-plasma ion implantation apparatus. The accelerating voltage of metal ions was set at 40 kV with implantation doses of 1 × 1017 ions/cm2 for Mo and 2 × 1017 ions/cm2 for carbon. After Mo and carbon ion implantation, molybdenum carbides were found in the implanted layer of CrAlSiN. The wettability of the ion implanted CrAlSiN films by molten glass at 500 °C in controlled air under 1.7 Pa was measured by using a sessile drop method. Mo and carbon ion implanted CrAlSiN films showed the lowest wettability of all tested samples, which is attributed to a reduced adhesion of molten glass at high temperature. The ion implanted CrAlSiN films showed an anti-sticking characteristic superior to the as-deposited CrAlSiN films. Results of this study demonstrate the potential of metal plasma ion implantation in improving the anti-sticking behavior of the CrAlSiN films by molten glass.