Abstract
Six series of alloys, namely, Ni3Zr6Al x , Ni3Zr7Al x , Ni4Zr9Al x , Ni3Zr8Al x , Ni3Zr9Al x and Ni3Zr10Al x (x=1, 1.5, 2, 3) were designed in this work and the bulk metallic glass (BMG) formation of these compositions was investigated by copper mold suction casting. A centimeter-scale BMG sample was obtained for the Ni4Zr9Al2 (Al13.3Ni26.7Zr60 in atomic percent) composition. The thermal glass parameters for this BMG were determined to be ΔT x = 68 K, T rg = 0.579, and γ m = 0.689. Using the ‘cluster-resonance’ model for glass formation an optimal BMG composition was determined using the cluster formula [Ni3Zr9](Al2Ni1).
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