Scientists at National University of Science and Technology MISiS (NUST MISiS) have created protective coatings effective in preventing wear on machine parts and tools.
The results of the study were published in the journal Ceramics International.
Protective coatings prevent machine parts and metalworking tools from wear, oxidation and corrosion. Their application allows improving the characteristics of the base material and increasing the service life of milling cutters, cutting plates, drills, reamers, stamping tools, parts of heavily loaded friction units (bearings, shafts, gears, gears, transmission gear variators).
According to him, the practical significance of the study is to increase the efficiency of metalworking by reducing the friction coefficient in the cutting area, increasing wear-resistance and thermal stability of the coating, reducing emissions of harmful impurities into the atmosphere (due to abandoning the use of lubricants and coolants).
Scientists will then improve the composition of the coatings and their application technologies. Application of such protective coatings is considered to be perspective when deposited through high power pulsed magnetron sputtering, reaching hundreds and thousands of kilowatts.
According to the authors, this method will significantly increase the density of coatings and provide record adhesion strength to the surface of articles (due to the formation of extended pseudo-diffusion layers at the interface, containing both coating elements and substrates).