Abstract
The crystallization process of the Zr 41.2Ti 13.8Cu 12.5Ni 10.0Be 22.5 bulk metallic glass was investigated by X-ray diffraction (XRD), small-angle neutron scattering, and 9Be nuclear magnetic resonance. Upon annealing near the glass transition and up to a temperature near 673 K, a Be-containing crystalline phase forms after sufficient decomposition of the supercooled liquid. The XRD pattern of this Be-containing phase is consistent with icosahedral symmetry. The small length scale of the decomposed supercooled liquid structure limits the grain size of this phase, which gives rise to broad XRD peaks. Above 673 K, annealing produces Be 2Zr and Zr 2Cu, along with other crystalline phases.
Published Version
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