Patent ID: 7749614

Claim:
A method of fixing to the surface of a first part comprising a metal material, a second metal material by melting a brazing alloy adapted to the second material, the first material comprising an intermetallic Ti—Al alloy, characterised in that wherein a layer of nickel having a thickness of at least 30 μm is interposed between the first part and the brazing alloy, wherein said method forms a plurality of successive layers over said first part, wherein said plurality of successive layers comprise a first layer comprising phases α2-Ti 3 Al, τ2-Ti 7 AlNi and τ3-TiAlNi, and second, third and fourth layers formed respectively of phases τ4-TiAlNi 2 and γ′-Ni 3 Al and of nickel, and a fifth layer comprising the brazing alloy connecting the fourth layer to the second metal material.