Transformation-mediated ductility in CuZr-based bulk metallic glasses.

  title={Transformation-mediated ductility in CuZr-based bulk metallic glasses.},
  author={Simon Pauly and Sandeep Gorantla and Guo Wang and Uta Kuehn and Juergen Eckert},
  journal={Nature materials},
  volume={9 6},
Bulk metallic glasses (BMGs) generally fail in a brittle manner under uniaxial, quasistatic loading at room temperature. The lack of plastic strain is a consequence of shear softening, a phenomenon that originates from shear-induced dilation that causes plastic strain to be highly localized in shear bands. So far, significant tensile ductility has been reported only for microscopic samples of around 100 nm (ref. 4) as well as for high strain rates, and so far no mechanisms are known, which… CONTINUE READING
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