Thermally depositing a composite coating on aluminum substrate

Details Thermally depositing a composite coating on aluminum substrate Thermally depositing a composite coating on aluminum substrate

C - Chemistry, Metallurgy

23

C

C23C 4/10 (2006.01) C23C 4/02 (2006.01) C23C 4/12 (2006.01) F02F 1/20 (2006.01)

Patent

CA 2186172

Method of depositing an Fe x O comprising coating onto a light metal substrate by use of wire-arc thermal spraying that propels atomized drouplets by use of atomizing gases, comprising: preparing at least one surface of the light metal substrate to present an exposed essentially non-oxidized substrate surface; and thermally spraying melted droplets of a steel feedstock wire onto the prepared surface by use of propellant gases to deposit a composite coating, the gases being controlled as to content to regulate the exposure of the droplets to oxygen so that Fe x O is substantially the only iron oxide formed during spraying, x being.5-1.5.

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