ELEVATED TEMPERATURE TRIBOTECHNICAL INVESTIGATIONS OF COMPOSITE ELECTROLYTIC COATINGS WITH EUTECTIC FILLER
Journal Title: Проблеми тертя та зношування - Year 2017, Vol 75, Issue
Abstract
The elevated temperature tribotechnical investigations of composite nickel-based electrolytic coatings are carried out. As a composite coating filler the wear-resistant eutectic alloy powder designed for operation at elevated temperatures is used. Heat treatment in modes without melting and with melting of the composite coatings essentially changes the structure and element content of coating areas: matrix - transitive zone – particle filler. Necessity of heat treatment is validated by need of increase the mechanical properties of a matrix, increase the adhesion and cohesion. Besides, as the coatings were developed for operation at the raised temperatures the applying of heat treatment at temperatures above than friction units operational temperatures promotes avoidance of uncontrollable structural transformations in a coating at action of operational temperatures. Tribological tests have shown high wear resistance of the developed coatings at the raised temperatures due to the introduction into a nickel matrix specially developed eutectic alloy powder filler. The alloy powder filler content was chosen to form secondary structure optimum films for protection of a surface against wear process at a friction. It is shown, that modes of heat treatment essentially influence on coating wear resistance. It is thus established, that optimum heat treatment of a composite coating with eutectic alloy powder filler is a mode without melting temperatures 950 °С.
Authors and Affiliations
A. O. KORNIENKO, S. V. FEDORCHUK, M. V. KINDRACHUK
Keywords
Related Articles
- EP ID EP324450
- DOI -
- Views 46
- Downloads 0
THE INFLUENCE OF DOPING MOLYBDENUM ON THE PHYSICAL AND MECHANICAL PROPERTIES OF THE EUTECTIC ALLOY OF SYSTEM OF WC-W2C
The arrival on the market of drilling services of foreign companies has led to a change in drill-ing technology and substantially changed the requirements for the material and structures of drill pipes. The most demande...
EXPERIMENTAL RESEARCHES OF ENERGY LOADING OF FRIC-TION PAIRS OF BAND-BLOCK BRAKES WITH AN AIR-LIQUID COOLING SYSTEM (part three)
The materials of the article show the optimization design of the composite brake pulley, with heat currents circulation in it and the gradients of the heat transfer coefficients. The purpose of the work is to justify the...
PRESSURE INFLUENCE ON THE FORMATION OF PROFILE AND THICKNESS OF LUBRICANT FILM IN THE LOCAL CONTACT OF ROLLING IN THE CONDITION OF ELASTIC-HYDRODYNAMIC LUBRICATION
The influence of the pressure on the formation of lubricant film in the local contact of rolling investigated. The peculiarities of the pressure distribution and thickness of the material in the condition of elastic-hydr...
METAL-CONTAINING POLYMERS IN GRAIN CHAIN CONVEYORS
Laboratory and production tests were conducted to increase the reliability and durability of grain chain conveyors. It is established that the index of abrasive abrasion of metal-containing polymers is determined by the...
PROFESSOR M. KINDRACHUK CREATIVE CAREER
PROFESSOR M. KINDRACHUK CREATIVE CAREER