The research of tribological logic characteristics of electric arc coatings from powdered wires in technological environments was conducted: under conditions of limit lubrication in lubrication I-20;
in the environment of 3 % emulsor of the brand Hydroway 1060 and lubrication M10V2. Coatings in the thickness of 1.2–1.5 mm were applied by serial electro-arc metal with the inhibitor of PMI-1
on a pre-treated spatally-cut surface of both flat and cylindrical specimens from steels of St 3 by spraying powder tubes 140Х14Н2Т2Юand 20Х18Р3Т2Юin diameter of 1,8 mm. Tribological logic
characteristics and wear resistance of the coatings were studied at the modernized installation of SMC-2 according to the disk-block scheme (counter-body). The coefficient of friction was determined
both in conditions of dry friction and boundary lubrication in the media. The processing of the research results was carried out by statistical data processing using Student’s coefficient with the number of
measurements n = 5 and the reliability of P = 0.95. It was established that with the increase in specific load in the environment of I-20 oil and 3 % emulsol 1060, the coefficient of friction in the friction pairs
is the electric arc covering – iron, electric arc coating – bronze and electric arc coating – the bubble decreases, and for the most part for the last pair. The friction pair of galvanic chrome-babbit is not
working both in I-20 oil and in 3 % emulsol.