Abstract

The results are presented for studies concerning the tribotechnical properties of titanium nitride coatings under cyclic loading, which is typical for heavily loaded friction clutches. Testing was carried out according to the ball-disk scheme with a cyclic application of contact pressure and short-term slippage. The possibilities of studying the tribotechnical characteristics of friction pairs using a vibration tribometer under different combinations of loading and relative displacement parameters have been demonstrated. The obtained experimental data on TiN–steel friction pairs in the course of sliding in the presence of a lubricating medium indicate a high stability of the friction coefficient under cyclic loads. Increasing friction power in the TiN–steel friction pair does not lead to an abruptly dropping friction coefficient. As the relative movement velocity decreases, the friction coefficient increases. The development of friction disks coated with titanium nitride for highly loaded gearboxes should reduce the dynamic loads in the course of operation originating from the destabilization of the friction coefficient and increase the efficiency and service life thereof.

中文翻译：

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高负荷摩擦离合器的氮化钛涂层的摩擦学特性

摘要

给出的结果用于研究循环载荷下氮化钛涂层的摩擦学性能，这对于重载摩擦离合器来说是典型的。根据球盘方案进行测试，循环施加接触压力和短期滑移。已经证明了使用振动摩擦计在载荷和相对位移参数的不同组合下研究摩擦副的摩擦技术特性的可能性。在有润滑介质的情况下，在滑动过程中获得的有关TiN钢摩擦对的实验数据表明，在循环载荷下，摩擦系数具有很高的稳定性。TiN-钢摩擦副中摩擦力的增加不会导致摩擦系数突然下降。随着相对运动速度的减小，摩擦系数增大。用于高负荷齿轮箱的涂有氮化钛的摩擦盘的开发应减少在运行过程中由于摩擦系数的不稳定而引起的动态载荷，并增加其效率和使用寿命。