【摘要】 在原有工艺资料的基础上对1Cr18Ni9Ti进行连续驱动摩擦试验,利用扫描电镜观察在不同摩擦速度下摩擦表面形貌,并测量其摩擦力矩变化,从而对其摩擦界面的摩擦行为和热塑性流动层氧化物的流动排除过程进行了分析。结果表明,当摩擦压力为450N、摩擦速度为1000r/min时,摩擦界面能达到稳定的热塑性流动状态,摩擦力矩最大,但波动不大,且界面塑性流动层排除氧化膜碎片的能力最强;摩擦速度过大或过小都不利于破碎的氧化膜的排除。更多还原

【Abstract】 Continuous drive friction test was carried out on the stainless steel of 1Cr18Ni9Ti on the basis of original technical data.The friction surface morphology at the different friction speed was inspected by SEM,and the changes of the friction torque were measured.The friction behavior of the friction interface and the processes of flowing and removing of the oxide on thermoplastic flow layer were analyzed.The results show that at the friction speed of 1000 r/min,the friction interface can reach a steady thermoplastic state and has a maximum friction torque without going up and down obviously.In addition,there is the best ability to expel the fragments of the oxide film on the interface of plastic flow layer at the speed.Too big or too small friction speed is not helpful to remove the crushed oxide film.更多还原