The Influence of the Roughness of a Steel Counterbody on the Tribological Characteristics of Friction Composites under Friction in Oil

Abstract

The influence of surface roughness of a steel counterbody on friction (coefficients of static and dynamic friction) and wear parameters is investigated for friction composite materials that operate in a transmission oil medium. The wear rate of composites and the level of dynamic instability of tribological conjugations (chatter, vibration, and noise) are shown to exhibit a non-monotonic dependence on the roughness of a steel counterbody with a common local minimum, which is typical of various friction materials. A rapid diagnostic method of tribotechnical and NVH-testing of friction materials intended for operation in oil is proposed as well.