METHOD OF SURFACING IRON ALUMINIDES Russian patent published in 2017 - IPC B23K9/04 B23K9/23 

FIELD: metallurgy.

SUBSTANCE: pre-surfacing the aluminium layer is performed in shielding gases using an electrode wire made of aluminium or aluminium alloys. The aluminium layer is then re-melted using a steel electrode wire. Remelting of the aluminium layer with introduction of liquid steel into the aluminium bath allows, depending on the deposition modes, to form a surfaced layer based on iron aluminides with a chemical composition corresponding to the chemical composition of the intermetallic phases of Fe₃Al.

EFFECT: high performance properties of the part are achieved due to the high homogeneity of the chemical composition of the surfaced metal.

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