Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses

Ichiro Seki, Hisamichi Kimura, Kazuhiro Nakata, Akihisa Inoue

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    We have examined difference in embrittlement behavior of characteristic Zr-based metallic glasses of Zr55Cu30Al 10Ni5, Zr59Cu31 Al10 and Zr65Cu17.5Ni10Al7.5. All of the metallic glasses are embrittled with the precipitation of crystalline phases, and the crystalline phases for the Zr55Cu30Al 10Ni5 metallic glass change in annealing temperatures of Tg-15 K and TX-50K. The embrittlement behavior is relating well with the behavior of the precipitated crystalline phases and is caused with step-wise process when the several kinds of crystalline phases are precipitated continuously and complexly. The precipitation of crystalline seems to relate to formation of shear band with the embrittlement behavior. Especially, CUZr2 phase causes much shear band near fracture point with bending test.

    Original languageEnglish
    Pages (from-to)2033-2038
    Number of pages6
    JournalMaterials Transactions
    Volume51
    Issue number11
    DOIs
    Publication statusPublished - 2010 Nov

    Keywords

    • Annealing
    • Bending test
    • Fracture strain
    • Shear-band
    • Vickers micro-hardness
    • Zirconium-based metallic glass

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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