Microstructures and mechanical properties of conventionally solidified Al63Cu25Fe12 alloy

▶ Icosahedral phase-containing Al63Cu25Fe12 alloy were formed by slow cooling of the molten alloy. ▶ X-ray diffraction, scanning electron microscopy, differential thermal analysis, and Vickers indentation measurements were made on as-cast samples and on samples annealed at 200, 400, and 600 °C. ▶ XRD and SEM results confirmed the formation of i-phase. ▶ The melting point of i-phase was determined as 890 °C. ▶ The microhardness (HV), the elastic modulus (E) and the plasticity factor (δH) of the as-cast sample were found to be 598 kg fmm−2 (5.86 GPa), 104 GPa and 0.54, respectively.