High strain rate behaviour of nano-quasicrystalline alloy and composites

Nano-quasicrystalline Al93Fe3Cr2Ti2 alloy has shown good specific tensile and compressive strength and thermal stability in previous studies, though with reduced ductility. In the present work, composites were produced with the addition of pure Al fibres to improve ductility. The first dynamic tensile and compressive tests ever performed on this alloy and composites showed outstanding flow stress reaching 1GPa. The tremendously high flow stress, coupled with the alloys's strain hardening response opens new pathways for use as a candidate material for impact applications.