经完全退火处理的Ti-Al-Zr合金表面注入不同剂量的N离子, 并在pH值为10的溶液中进行电化学腐蚀试验.结果表明, N离子注入后, 试样表面首先形成具有四方结构的ε-Ti2N, 随着离子注入剂量的增加, 四方结构的ε-Ti2N逐渐向立方结构的σ-TiN转变, X射线光电子能谱的分析结果也证实了这一变化过程;N离子的注入能明显改善Ti-Al-Zr合金表面的耐腐蚀性能, 且在注入8 ×1016 ion/cm2时得到最佳的耐腐蚀性.根据原子碰撞理论对电化学腐蚀实验结果进行了理论分析.
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