崔振铎,杨贤金,朱胜利,文效忠

• 1:天津大学材料学院
• 2:天津大学材料学院
• 3:天津大学材料学院
• 4:香港理工大学工业及系统工程系 天津300072

摘要(Abstract)：

采用 2kWNd :YAG激光器对NiTi合金进行表面重熔处理 ,利用扫描电镜、X射线衍射、X光电子能谱分析重熔层成分和组织结构 ,利用电化学测试研究重熔层耐腐蚀性能。结果表明 :NiTi合金经过激光重熔处理后 ,可得到致密的重熔层 ;根据激光处理参数的不同 ,在重熔层中会出现Ti2 Ni、TiNi3等新相 ,重熔层表面Ti Ni及Ti4 + Ti比显著提高 ;电化学极化曲线表明激光重熔后NiTi合金的耐蚀性得到了显著改善

关键词(KeyWords)： NiTi合金;激光表面重熔;表面特性;腐蚀;生物材料

Abstract:

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基金项目(Foundation):

作者(Author): 崔振铎,杨贤金,朱胜利,文效忠

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