在钛及钛合金表面生成羟基磷灰石（HA）来制备生物材料是医学应用中亟待解决的问题。利用微弧氧化工艺在Ti合金表面制备了HA膜，研究了膜层在模拟体液中浸泡前后的形貌、相结构、Ca与P原子分数比，并分析了膜层在模拟体液中的降解和沉淀机制以及浸泡后的耐磨性。结果表明：膜层在模拟体液中随浸泡时间延长而逐渐变厚；浸泡20d后膜层中HA晶粒发育完整，不定形相减少，表面Ca，P含量比下降至1．66，已接近人体骨骼标准；膜层在模拟体液中的降解和溶解有利于其与骨骼的结合；浸泡时模拟体液的pH值变化不大，说明膜层化学稳定性好，耐模拟体液腐蚀；在模拟体液中浸泡后膜层的摩擦系数随摩擦时间延长先升高后降低，耐磨性最终呈升高趋势。
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