Compositional dependence on phase selection during devitrification of amorphous Zr–Pt alloys

The devitrification pathways of alloys were determined using time-resolved synchrotron radiation. Amorphous Zr73Pt27 ribbons transformed directly to the stable Zr5Pt3 structure but ribbons with higher Zr contents first formed a metastable quasicrystalline phase before transforming to the Zr5Pt3 structure. Lower crystallization activation energies were observed for the higher Zr-content alloys.