Abstract
In this project the effect of nitrogen ion implantation on the corrosion resistance of Ti6Al4V alloy is studied. Nitrogen ions are implanted with four fluences from 8 × 1017 to 5 × 1018 ions/cm2 in the Ti6Al4V substrates. The effect of ion implantation on surface morphology and roughness is investigated with Atomic Force Microscopy. X-ray diffraction is used for phase analysis of the samples and as a result Ti2N(105) in the fluence of 1 × 1018 ions/cm2 and TiN in fluence of 2 × 1018 ions/cm2 are observed. For corrosion resistance analysis in one molar sulfuric acid a potansiostate device is used and the best corrosion resistance is obtained for the fluence 2 × 1018 ions/cm2. Moreover corrosion resistance variation is explained by microstructure considerations.
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