Abstract
High-cycle fatigue (HCF) experiments in air and vacuum at room temperature were conducted on zirconium (Zr)-based bulk-metallic glasses (BMGs): Zr 50Cu 40Al 10, Zr 50Cu 30Al 10Ni 10, and Zr 50Cu 37Al 10Pd 3 in atomic percent. The fatigue-endurance limit of Zr 50Cu 37Al 10Pd 3 was found to be significantly greater than those of Zr 50Cu 40Al 10 and Zr 50Cu 30Al 10Ni 10, which indicates that the inclusions of Pd and the resulting nano structures improve the fatigue resistances of the Zr-based BMGs. The fatigue lives in vacuum and air were generally found to be comparable.
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