The modified layer is composed of Mo16N7.The corrosion resistance of pure titanium in 0.5 mol/L H2SO4 solution is improved by Mo-N surface modified layer. The preliminary inquire for corrosion mechanism was performed.

• 改性层表面由钼氮化合物Mo16N7组成; Mo-N改性层提高了纯钛在0.；5mol/L的H2SO4溶液中的耐蚀性；并对改性层在稀硫酸介质中腐蚀机理进行了初步探讨。