Structural and energetic self-organization of antifriction composite materials of car parts during friction and wear

Abstract

The development and research of composite materials for heavily loaded tribo-couplings of car parts was based on the main provisions of the concept of structural and energetic adaptability of their materials during friction and wear. The presented data of experimental studies of the effect of ultrasonic treatment of materials on the nature of the change in the coefficient of friction depending on the value of the specific load at a constant sliding speed. Data were obtained that characterize the features of structural adaptation and self-organization during friction and wear of copper and lead alloys. The research was carried out using a universal tribometer according to the "finger-disc" end surface contact scheme in the medium of inactive petroleum jelly. The use of composite wear-resistant materials is proposed to increase the tribological efficiency of car parts, units and assemblies. Experimental studies and analysis of the obtained data were carried out on the basis of the developed parametric scheme for the study of tribocouples of samples and parts using the main provisions of system analysis.