FORMATION OF QUASICRYSTALLINE PHASE IN RAPIDLY SOLIDIFIED Al-Fe-V-Si ALLOY

The icosahedral quasicrvstalline phase (i-phase) with the chemical composition of 82.4at%Al. 8.8at?. 3.6at%V and 5.2at%Si in melt spun Al-Fe-V-Si ribbons was found. It is suggested that the temperature and holding time of the melt prior to quenching are the important factors in the formation of the i-phase.