CASTABLE ALUMINIUM ALLOY Russian patent published in 2010 - IPC C22C21/04 

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy, and namely to alloys on the basis of aluminium and can be used when manufacturing parts of automobile motors operating under effect of high loads at temperatures of up to 150-200°C. Castable alloy on the basis of aluminium contains the following components, wt %: silicone 7.6-8.6, copper 0.3-0.5, magnesium 0.26-0.38, manganese 0.1-0.3, iron 0.1-0.3, when the following conditions are met: temperature of equilibrium solidus of the alloy is not less than 550°C, volume ratio of secondary separations of Al₅Cu₂Mg₈Si₆ phase is not less than 0.8 vol %.

EFFECT: sparingly alloyed silumin is obtained, which is intended for obtaining shaped castings of complex shape and which has high mechanical properties σ_H of not less than 320 MPa, δ not less than 4%.

3 cl, 1 dwg, 2 tbl, 3 ex