RESEARCHES OF STRUCTURE AND PROPERTIES OF PLASMA SPRAY COATINGS ON THE BASIS OF FE–AL
Abstract
Taking into account the modern tendencies of intensification of production processes, increase of workings pressures, speeds, temperature, resulting in a speed-up wear details, the superficial layers of spray coatings are formed by plasma spray coatings of powder Fе3Al and powder, consisting of mechanical mixture of Fe and Al. The analysis of mechanical properties of plasma spray coatings is conducted. By plasma spray coatings of Fе–Al are got from simple components. On results research of chemical composition and mechanical properties of compositions of Fе–Al, Fе3Al and bronzes of PG19M is set basic descriptions, determining wear and friction of plasma spray coatings. It is set that coatings of Fе–Al, Fе3Al possess high wearproofness, and on anti-friction properties can successfully compete with bronzes. The in future developed coatings can be used for details which are exploited at the static and dynamic loadings.
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