Abstrakt
Al-Cu-Li originated as possible high strength, low density materials used for structural components in the aerospace industry. The AA2195 alloy - a third generation Al-Li based alloy is traditionally DC cast and its thermomechanical processing and properties are well known.
Rapidly solidified AlCuLi alloys present a sparsely studied system. While not suitable for structural applications it could find use in other areas such as MEMS components.
The high solidification rate leads to formation of a fine grained to amorphous microstructure and formation of highly non-equilibrium crystalline and quasicrystalline phases. Systems where crystallite size is comparable to size of strengthening and constituent phases can be of interest for potential applications, but also studying of fundamental processes of materials science such as phase transformations