Improvement of the adhesion of arc deposition TiN coatings by high intensity pulsed ion beam pretreatment of cemented carbide surfaces

The work presents the results of modification of WC-Co alloys using combination of the high intense pulsed ion beams (HIPIBs) irradiation (beam composition C ⁺ / H ⁺ – 85/15%, E = 200–250 keV, τ _FWHM ) and deposition of protective coatings by high-intensity repetitively pulsed titanium low energy ion beams formed from vacuum arc plasma. Improvement of coating adhesion was provided due to pretreatment of the HIPIBs surface. The use of HIPIBs irradiation is shown as a pre-treatment method that increases the adhesion of deposited protective coatings. The influence of ion current density on the microhardness of the material is shown. The results of the effect of pulsed ion irradiation as well as thin film deposition on tribological and mechanical properties are presented. The dependences of wear resistance of tools made of modified WC-Co alloys were obtained. This work discusses the prospects for using a combination of HIPIBs irradiation with new technique of coating deposition for modification of cemented carbide alloy for machining a wide range of metal alloys.