Abstract
In this work, the time-dependent plastic deformation behavior of Ti40Zr25Ni3Cu12Be20 bulk and ribbon metallic glass alloys was investigated using a nanoindentation technique at room temperature with the applied load ranging from 5 to 100 mN. The stress exponent n, defined as, has been derived as a measure of the creep resistance. It was found that the measured stress exponent increases rapidly with increasing indentation size, exhibiting a positive size effect. The size effect on the stress exponent n obtained from the bulk sample is more pronounced than that obtained from the ribbon sample. The deformation mechanism involved will be discussed.
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Huang, Y.J., Chiu, Y.L., Shen, J. et al. Indentation creep of a Ti-based metallic glass. Journal of Materials Research 24, 993–997 (2009). https://doi.org/10.1557/jmr.2009.0106
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DOI: https://doi.org/10.1557/jmr.2009.0106