离子注入空间齿轮传动副用30CrMnSi材料真空摩擦学性能研究

Tribology of Ion-Implanted 30CrMnSi Materials for Space Gear Transmission Elements

通过多种表面测试手段对几种单一及双离子注入空间齿轮传动副用30CrMnSi材料的真空摩擦学性能进行了研究,同时对不同注入条件进行了计算机模拟计算。结果表明,Ti++N+双注入后表面真空摩擦磨损性能相对最好。这主要是由于离子注入引起的注入层微观结构变化改变了摩擦磨损机理,从而改善了材料的摩擦学性能。

The surfaces of 30CrMnSi materials, used in fabrication of the space gear transmission elements, were modified by single and/or dual ion implantation to improve its tribological property in vacuum. The influence of ion im- plantation conditions was simulated. The microstructures and mechanical properties of the surface modified 30CrMnSi materials were characterized with X-ray microscopy and some conventional mechanical probes. The results show that the Ti ＋ N- dual ion implantation under the optimized implantation conditions significantly improves the tribological property, outperforming other surface modifications, including single ion implantation. Possible mechanism was also tentatively discussed.