Possible effects of geoactivators friction in friction units of machine parts

The paper shows a new method of restoration of interacting nodes using geoactivators friction. This method allows to reduce the wear on the surface, as well as to restore the functional condition of the worn surfaces without interrupting operation of mechanisms. The idea is based on using a new generation of geoactivators and management processes in the contact zone of friction pairs to increase the durability and longevity of machinery. It was found that the mechanism of action consists in the ionic diffusion of the components of special tribological composition. The research is based on the selection of the composition of tribological materials, determining the physical and chemical characteristics of geoactivators, using computer technology, testing machines and equipment, tools for monitoring the process of friction and wear, carrying out of a modern metallophysical analysis and analytical and statistical processing of experimental data. Experimental studies of the mechanism of interaction geoactivators with different structural materials under friction, which included the analysis of damage of units and parts of mining and metallurgical equipment during their interaction were held. The analysis of chemical composition of the powder materials used to manufacture geoactivators was carried out. Metallographic studies of the friction surfaces using geoactivators and study of the influence geomodifiers on mechanical and performance characteristics of materials were undertaken. The studies on the friction surfaces after treatment by geoactivators showed that geoactivators components diffuse into the surface layers of the material and form crystalline layers, which are solutions of the components in phase components geoactivators steels and cast iron surface. Investigations of mechanical properties showed that the hardness and wear resistance of the surface layer increases and the roughness of the contact surfaces reduce.