Process for manufacturing an aluminium alloy part

A process for manufacturing a part including a formation of successive metal layers, which are superimposed on each other, each layer being formed by depositing a filler metal, the filler metal being subjected to a supply of energy so as to become molten and to constitute, upon solidifying, said layer, the process being wherein the filler metal is an aluminum alloy consisting of the following alloy elements (% by weight);

• Fe:
• 2% to 8%, and optionally 2% to 6%, optionally 3 to 5%;
• optionally Zr:
• 0.5% to 2.5%, or 0.5 to 2%, or 0.7 to 1.5%, or <0.5%, or <0.2%, or <0.05%;
• optionally Si:
• <1%, or <0.5% or <0.2%, or <0.05%;
• optionally Cu:
• ≤0.5%, or <0.2%, or <0.05%;
• optionally Mg:
• ≤0.2%, optionally ≤0.1% optionally <0.05%;
• optionally other alloy elements<0.1% individual and in total<0.5%, wherein the other alloy elements are selected from the group consisting of:
• V, Ti, Mo, W, Nb, Ta, Sc, Zn, Hf, Nd, Co, La, Ag, Li, Yb, Er, Sn, In, Sb, Sr, Ba, Bi, Ca, P, B and mischmetal;
• impurities:
• <0.05%, or <0.01% individually, and in total<0.15%;
• remainder aluminum.