Superductile bulk metallic glass

K. F. Yao, F. Ruan, Y. Q. Yang, N. Chen

    Research output: Contribution to journalArticlepeer-review

    252 Citations (Scopus)

    Abstract

    Usually, monolithic bulk metallic glasses undergo inhomogeneous plastic deformation and exhibit poor ductility (<2%) at room temperature. We report a newly developed Pd-Si binary bulk metallic glass, which exhibits a uniform plastic deformation and a large plastic engineering strain of 82% and a plastic true strain of 170%, together with initial strain hardening, slight strain softening and final strain hardening characteristics. The uniform shear deformation and the ultrahigh plasticity are mainly attributed to strain hardening, which results from the nanoscale inhomogeneity due to liquid phase separation. The formed nanoscale inhomogeneity will hinder, deflect, and bifurcate the propagation of shear bands.

    Original languageEnglish
    Article number122106
    JournalApplied Physics Letters
    Volume88
    Issue number12
    DOIs
    Publication statusPublished - 2006 Mar 20

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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