采用电化学技术研究了离子注N对人体用金属材料 ,SUS316L不锈钢、钴合金和钛合金在人工模拟体液中的阳极极化行为影响 .自腐蚀电位和阳极极化曲线的测量结果表明 ,离子注N后材料的耐蚀性明显有所提高 .通过X射线衍射与AES分析发现 ,材料表面有金属氮化物析出 ,其化学效应和机械隔离起到了改善电化学性能的作用 . Electrochemical technique was used to study the effect of ion implantation N on the anodic polarization behavior of human body material, SUS316L stainless steel, cobalt alloy and titanium alloy in artificial simulated body fluid.The measurement results of self-corrosion potential and anodic polarization curve show that ion implantation The corrosion resistance of the material is obviously improved by X-ray diffraction and AES analysis showed that the metal nitride precipitation on the surface of the material, the chemical effect and mechanical isolation played a role in improving the electrochemical properties.