Multidimensional Technological Optimization of Thermohydrochemical Treatment of Hard Alloy in Silver Graphite Hydrosol

摘要

The results of a study of the tribotechnical properties of solid lubricating coatings obtained on the VK6 hard alloy (94% WC + 6% Co) as a result of thermohydrochemical treatment (THCT) in a hydrosol based on silver graphite are presented. A multidimensional technological optimization of the composition of the medium and the temperature-time parameters of the THCT process was carried out according to the coefficient of friction of the obtained solid lubricating coatings. Using mathematical models, diagrams "process parameters-property" were constructed. Processing according to the optimal mode of THCT allows, in the absence of lubrication, to reduce the coefficient of friction of a hard-alloy surface by 3.5 times compared with an untreated one.