Investigation of Properties of Electro-metallized Coatings Deposited by Supersonic Air Stream with Aerosol Fluxing

Abstract

The article presents the results of studies of the effect of flux components on the adhesive strength, porosity and oil absorption of coatings obtained by supersonic arc metallization (EM) using aerosol fluxing (AF) deposited on 45G2 steel with a speed v = 400-410 m / s. Due to the use of AF in EM, the adhesion strength of electrometallization coatings (EM coatings) increases. The highest value of adhesive strength is 66 MPa. Porosity due to the use of AF decreases by 1.5 - 1.6 times, in comparison with EM coatings without AF. At the same time, the oil absorption of EM coatings using AF decreases 1.6–1.7 times. It is advisable to use EM coatings with AF when restoring worn-out parts for various purpose equipment, as well as for eliminating defects at the production stage.

INVESTIGATION OF THE PROCESS OF ELECTRIC ARC METALIZATION OF COATINGS FROM STEEL 30KhGSA

“…The properties of the resulting coatings depend on several plating parameters such as wire or powder feed speed, voltage, current, withdrawal distance and nozzle geometry. Arc plating has a number of advantages over other coating processes [1][2]. It is a relatively inexpensive and fast process that can be used to coat large surfaces.…”

Tribological Properties of Coatings Obtained with Electrocontact Welding of Metal Powder Materials

“…At current the deposition methods (gas flame, plasma, detonation and electro arc) are widely spread among various powder materials [1][2][3][4][5][6][7][8][9][10][11][12][13]. Methods of electro arc [14][15][16] and laser welding [17][18][19][20][21] of metal powders, cored wire and sintered filler wires are well-known too.…”