Composition optimization of the NiZrYAl glass forming alloys

A NiZrYAl eutectic point was located by means of DTA method, and near the eutectic point, an alloy Ni56Zr16Y18.5Al9.5 was found to exhibit a better GFA than the previously reported similar alloy Ni55Zr17Y17Al11, which was confirmed by the results of DSC, XRD and SEM. Both the alloys exhibit a same melting temperature (Tm), which indicates that they belong to the same quarternary eutectic system.