针对目前NiTi支架电化学抛光表面形貌不理想的情况, 提出了一种改进的电化学抛光方法(冰醋酸-高氯酸-A-B), 并采用此抛光工艺对NiTi支架(Ti-50.8at.%Ni)进行了电化学抛光. 采用扫描电子显微镜(SEM)表征了抛光工艺对NiTi支架表面形貌的影响, 并利用电化学方法研究了不同表面处理(电化学抛光、机械抛光、酸洗)对同种成分的NiTi试片在Hanks'溶液中腐蚀性能的影响. 研究结果表明, 此工艺下的电化学抛光有效降低了NiTi支架的表面粗糙度, 改善了表面质量;电化学抛光的NiTi试片在Hanks'溶液中耐蚀性的提高也为电化学抛光NiTi支架的应用提供了实验依据.
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