NiTi形状记忆合金表面TiN薄膜的摩擦磨损性能研究  

Friction and Wear Characteristics of TiN Film on NiTi Shape Memory Alloy

作　　者：李小侠[1] 李波[2,3] 

机构地区：[1]江西财经大学功能材料研究所,江西南昌330013 [2]兰州大学物理科学与技术学院材料科学系,甘肃兰州730000 [3]鞍山科技大学材料学院,辽宁鞍山114051

出　　处：《摩擦学学报》2010年第3期229-234,共6页Tribology

基　　金：中国科学院兰州化学物理研究所固体润滑国家重点实验室资助(0208)

摘　　要：采用电弧离子镀技术在NiTi形状记忆合金表面制备了TiN薄膜,利用X射线衍射、扫描电子显微镜、原子力显微镜、轮廓仪、纳米压痕仪和摩擦试验机表征了TiN薄膜的相成分、表面特性、厚度、硬度和膜基结合力.通过摩擦试验对比了未镀膜和镀膜NiTi合金的摩擦磨损特性.结果表明:制得的TiN薄膜均匀、致密,提高了NiTi合金的硬度;在干摩擦、0.9%NaCl溶液和Hank′s溶液润滑介质条件下,TiN薄膜均表现出良好的减摩抗磨性能,提高了NiTi合金的抗摩擦磨损特性.TiN films were deposited on NiTi shape memory alloys by an arc ion plating technique.The phase structure,surface characteristics,the thickness,the hardness and the linking stress of TiN film were characterized by X-ray diffractionmeter,scanning electron microscopy,atom force microscopy,profilometer,and nano-indenter,successively.The friction and wear characteristics of NiTi alloys with and without TiN film were investigated under the same testing conditions on a tribometer.The results showed that TiN film was compact and even improved the hardness of NiTi alloy.The film presented good friction-reducing and anti-wear properties under dry friction,lubrication of Hank＇s solution and 0.9% NaCl solution,respectively.It indicated that the friction and wear characteristics of NiTi alloy can be improved by TiN film.

关 键 词：脉冲电弧离子镀 NITI形状记忆合金 TIN薄膜 摩擦磨损性能 

分 类 号：TG146.4[一般工业技术—材料科学与工程]