摘要
采用室温磁控溅射技术在钛合金(Ti6Al4V)表面制备SiC/TiB2-TiN双层薄膜,SiC为中间层,研究了TiB2-TiN复合薄膜的组织结构和摩擦磨损性能。结果表明,TiB2-TiN复合薄膜具有纳米尺度颗粒(畴)的微结构特征,SiC薄膜与基材和TiB2-TiN复合薄膜间都具有明显且呈梯度的元素扩散;在载荷200g、室温Kokubo人体模拟体液条件下,与氮化硅(Si3N4)球(直径4mm)对摩,其平均摩擦系数约为0.22,磨损速率在10-6 mm3/(m.N)级;并且TiB2-TiN复合薄膜对Kokubo人体模拟体液中的Ca、P元素具有很强的黏附能力。
The microstructure and friction/wear properties of TiB2-TiN composite films in SiC/TiB2-TiN double layer films（SiC film as interlayer） deposited on Ti6Al4V alloy substrate using magnetron sputtering at room temperature were investigated. The results showed that the TiB2-TiN composite films exhibited the micro-structural characteristics with nano-scale particles（domains）, and that all the interfaces among the substrate, SiC film and TiB2-TiN composite films showed good bonding, with large and gradual element diffusions. When sliding against a Si3N4（silicon nitride） ball（2mm in radius） using ball-on-disc type wear tester at room temperature under Kokubo simulation body fluid and 200g load, the TiB2-TiN composite films exhibited the friction coefficient of about 0. 22 and the specific wear rate on the order of about 10-6mm3/（m·N）. In addition, it was found that the TiB2-TiN composite films had great adhesion effect on elements（Ca, P） in Kokubo simulation body fluid.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第A03期480-482,486,共4页
Journal of Functional Materials
基金
江苏省摩擦学重点实验室基金资助项目(kjsmcx06005)
江苏大学"拔尖人才工程"培育基金资助项目(1211110001)
