Mechanical properties of Pd-Cu-Si bulk metallic glass

Ke Fu Yao, Yi Qiang Yang, Na Chen

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    In present work, Pd77.5Cu6Si16.5 bulk metallic glass balls with diameter up to 6 mm have been prepared by fluxing and water quenching method. It has been found that the Pd-Cu-Si glassy alloy exhibits a compressive plastic strain of about 11.4%, together with strain hardening characteristics. A large localized shear band, accompanied by a shear step of about 220 μm in size, has been clearly observed on the deformed specimen. The related shear plane is estimated to have an angle of 42 degrees with respect to the loading axis. The good ductility of the glassy alloy is believed to be partially attributed to strain hardening and the higher resistance of the glassy alloy to crack nucleation and propagation due to its large Poisson's ratio.

    Original languageEnglish
    Pages (from-to)639-643
    Number of pages5
    JournalIntermetallics
    Volume15
    Issue number5-6
    DOIs
    Publication statusPublished - 2007 May

    Keywords

    • A. Glasses, metallic
    • B. Brittleness and ductility
    • B. Mechanical properties at ambient temperature
    • B. Work hardening

    ASJC Scopus subject areas

    • Chemistry(all)
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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