A LONG DHVOF chromium carbide coating is here applied to a gas swirl assembly used in power plant operations. The assembly will be installed in a circular duct which carries hot gas streams laden with erosive and corrosive fly ash. The swirl is designed to accelerate and divert the gas streams , which achieve temperatures of up to 600°F and velocities of 4000-5000 feet per minute (FPM). Application of the chromium carbide protective coating serves to greatly extend the service life of the gas swirl assembly.
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