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Evaluation of Al – 2.5Wt.%Mg – 0.7Wt.%Li Alloy in as Cast Condition

Aluminium (Al) and Al based alloys have been utilized in the aircraft construction since 1930 because of their unique combination of properties. However, since weight reduction and temperature performances, as well as high strength and stiff ness, have become the key driving forces for new materials development and utilization in modern aerospace and space industry, the need for chemical composition redesign has been recognised. As a response to these newly defi ned requirements Al-Li-magnesium (Mg) alloys were developed and utilized. Besides signifi cant reduction in density these alloys have high corrosion resistance, good weldability, high elastic modulus and static tensile strength.

Al-Mg-Li alloy, solidifi cation sequence parameters, microstructural characteristics, mechanical properties, mathematical modeling

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