Characteristics and properties of plasma electrolytic nitrocarburizing Ti (C, N) coatings on Ti6Al4V alloy

Abstract Titanium carbonitrides Ti(C,N) coatings were prepared by plasma electrolytic nitrocarburizing in an solution containing ammonium nitrate, glycerol and ethanol. The coating consists of outer compound layer inner diffusion with a total thickness about 100μm. compounds consist amorphous TiO 2 . corrosion current density the is almost order magnitude lower than that Ti6Al4V substrate 3.5% NaCl solution. hardness up to 2200HK 0.025 , which 5~6 times greater alloy. itself worn very slightly while counter ball suffering serious abrasion during sliding against SAE52100 ball. PEN/C enhances hardness, abrasive resistances alloy substantially.