Abstract
In this paper, two Indium-alloyed Cu-based bulk metallic glasses, Cu54Zr37Ti8In1 and Cu50Zr37Ti8In5, have been evaluated with nanoindentation testing. Both bulk metallic glasses have homogenous nature in structure. Both hardness and Young’s modulus of bulk metallic glasses do not show a loading rate-dependent. Addition of In decreases hardness and Young’s modulus, but increases creep-resistance of bulk metallic glasses. Indentation creep of two bulk metallic glasses has also been investigated. The displacement-time curves of creep processes were described with generalized Kelvin model. The creep displacement, compliance spectrum, and retardation spectrum for each bulk metallic glass were discussed comparatively. The results showed that Cu50Zr37Ti8In5 has better creep-resistance at room temperature and a more relaxed state.
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