High-temperature strength and corrosion resistance of alloy steel coatings

Abstract

The investigated coatings were deposited by ion-plasma method while spraying cathode 12X18H10T steel and composite cathodes. It is shown that the larger the surface tension of the coating, the greater the heat resistance. Since the surface tension of the metal is proportional to its melting temperature, it follows that the high-temperature strength primarily depends on the melting point of the metal. The higher melting temperature metal, the higher the recrystallization temperature. As shown experimentally, that the greater the surface tension of the coating, the greater the corrosion resistance.