Aluminium alloy for casting

Abstract

An aluminium alloy having high Young’s modulus is provided, the alloy comprising: 6.5 wt.% to 17.5 wt.% silicon; and 0.5 wt.% to 11.0 wt.% nickel, and further comprising two or more elements selected from the following: copper in an amount of 5.5 wt.% or less; magnesium in an amount of 2.0 wt.% or less; manganese in an amount of 1.0 wt.% or less; zinc in an amount of 2.0 wt.% or less; beryllium in an amount of 2.0 wt.% or less; lithium in an amount of 2.0 wt.% or less; titanium in an amount of 0.3 wt.% or less; vanadium in an amount of 0.3 wt.% or less; silver in an amount of 0.3 wt.% or less; niobium in an amount of 0.3 wt.% or less; iron in an amount of 0.8 wt.% or less; chromium in an amount of 1.0 wt.% or less; and zirconium in an amount of 0.3 wt.% or less. Methods of making the alloy are also provided, as well as cast products and methods of making cast products from the alloy composition.