Effect of Nitrogen Ion Implantation on Microstructure and Improvement of Titanium Corrosion Resistance

摘要

In the present study the effect of nitrogen ion implantation on the structure of titanium surface and corrosion resistance have been investigated. In this experiment 30 keV nitrogen ion beam of 1 x 10~(18)to5 × 10~(18) ions/cm~2 fluence was used. Crystalline structure of the different samples was studied by X-ray diffraction analysis. The roughness variations before and after implantation were observed by atomic force microscopy. The corrosion test was used to compare the corrosion resistance of titanium before and after ion implantation. The surface morphology of the samples after corrosion test was investigated by scanning electron microscopy. The results showed that nitrogen ion implantation has a substantial effect on the improvement of titanium resistance against corrosion.