摘要
以30CrMnSi钢为基体,用磁控溅射法制备出Au/TiN复合薄膜材料,研究了薄膜在大气环境中的滑动摩擦磨损性能。结果表明:该复合薄膜材料与9Cr18钢球构成的滑动摩擦副,在接触压力不大于1.0GPa条件下,摩擦系数小于0.15,摩擦次数超过3×105;在较宽的温度、湿度和磁场范围内,薄膜的摩擦磨损性能保持稳定。当接触压力增大至3.0GPa时,薄膜的摩擦系数增大,耐磨寿命减小。该薄膜可用于大气环境下长寿命低载荷精密摩擦副的润滑。
The tribological properties of Au/TiN composite films, deposited on 30CrMnSi substrates by magnetic sputtering and sliding against 9Cr18 steel ball in air, were investigated using a ball-on-disk tribo-meter. The morphology, hardness, adhesion and composition of the worn surface were characterized by means of electron probe micro-analysis, micro hardness test and scratch test. The results show that the film has a lower and more stable friction coefficient and longer endurance life under 1.0 GPa contact stress. Slight damage was observed on the worn surface under lower normal load, which became severe at relatively higher normal load, such as 3.0N. The film not only has better tribological properties in ambient temperature dry air conditions but also maintained stable properties when the temperature, humidity and magnetic field are changed in a relatively wide range. Thus Au/TiN composite film is suitable for lubrication of long-term precise devices subject to low normal load in air.
出处
《机械工程材料》
CAS
CSCD
北大核心
2004年第5期41-43,54,共4页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50272068)
