Редколлегия Физикохимия Поверхности и Защита Материалов - Efficiency, Kinetics, and Chemism of Triboconversions of Lubricating Materials

Efficiency, Kinetics, and Chemism of Triboconversions of Lubricating Materials

All-Russia Research Institute of Oil Processing,
ul. Aviamotornaya 6, Moscow, 111116 Russia

e-mail: Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script

Abstract — The mechanism and kinetics of the tribochemical conversions of lubricating materials (oils and greases) in the zones of rolling and sliding friction and the major pathways of their consumption were subjected to a logical system analysis. The thermodynamic “grease–bearing” system was considered as an open nonequilibrium system with the time-dependent effective rate of tribochemical conversions of the dispersive medium of a grease, which complicates its mathematical description compared to the classical first-order kinetics. The derived kinetic equation for tribochemical grease degradation allows one to predict, with a practically accept-able accuracy, the service life of the friction unit and the advancement and chemism of tribochemical processes. It was demonstrated that the effective rate of the process is a function of the length of the kinetic sequence of tribochemical reactions. The effects of the composition of the lubricating material, the kinematics of the unit in the friction and reserve zones, the structural materials, the friction parameters, and the temperature on the major pathways and chemism of tribochemical processes were analyzed.