FORMATION OF COMPLEX CARBON-FILMS ON IMPLANTED CARBON LAYERS BY PULSED V PLUS C AND TI PLUS C DUAL IMPLANTATION INTO STEEL

Thin carbon films and implanted C complex layers are formed using puls ed V+C and Ti+C dual implantation into H13 steel. The thickness of the C films on the implanted layers were observed by Auger analysis to be 20-50 nm. The C film can reduce the surface friction factor and induc e surface lubrication. The surface hardening properties of pulsed Ti C and V + C were studied. Solid solution hardening was obtained for i mplanted atom concentrations of 20-45 at.%. Fine grains and dense disl ocations were observed by transmission electron microscopy, so fine gr ain hardening and dislocation hardening are expected. The dispersion h ardening phases were distinguished by X-ray diffraction and electron s pectroscopy to be Fe2Ti, FeV, TiC and VC.