Quasicrystalline phase formation in Zr-Ti-Nb-Cu-Ni-(Al) metallic glasses

The crystallization behavior of (Zr0.616Ti0.087Nb0.027Cu0.15Ni0.12)100−xAlx melt-spun glassy ribbons with x = 7.5 and 0 has been investigated. The glasses devitrify by the precipitation of an icosahedral quasi-crystalline phase in the first step of the crystallization process, indicating that the absence of Al does not hinder quasicrystal formation in the present alloys.