CAST ALLOY ON BASE OF ALUMINIUM Russian patent published in 2011 - IPC C22C21/04 

FIELD: metallurgy.

SUBSTANCE: cast alloy on base of aluminium contains following components wt %: silicon 2.8-4.4, iron 1.2-2.2, manganese 0.2-1.2, copper 0.5-3.5, magnesium 0.05-0.8, zinc 0.2-3.0, cerium 0.01-0.3, aluminium and additives - the rest. Alloy has structure containing inclusion of phase Al₁₅(Fe, Mn)₃Si₂ with skeleton shape morphology at amount of not less 3 vol. %. At cast state alloy has ultimate strength σ_t not less 250 MPa and modulus of elongation δ - not less 5 %. After ageing alloy has ultimate strength σ_t not less 300 MPa and modulus of elongation δ - not less 1%.

EFFECT: efficiently alloyed alloy of good processability and high ductility.

4 cl, 3 dwg, 2 tbl, 2 ex