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There are publications on increase of physical-mechanical properties of coatings by means of modulation of plasma arc and using of additional sources of electric field intensity. The work studies an influence of electric and pulse effect on double-phase high-temperature flow (DHTF), and, as a result, on structure and service properties of electric-arc and plasma coatings. Relationship of amplitude-frequency characteristics of high-voltage electric pulses with microstructure and properties of obtained coatings was investigated. It is shown that electric-pulse effect promotes for reduction of metal drops in DHTF and provides denser structure of plasma powder of PG-19M-01 grade and electric-arc coating from wire Sv-08G2S. 18—30 % rise of adhesion strength, 20—35 % of hardness and 1.7 times increase of wear resistance are observed. 8 Ref., 3 Tables, 5 Figures.

Increase of service properties of electric-arc and plasma coatings by use of electric-pulse effect on double-phase high-temperature flow