Thermal stability and mechanical properties of Ti47.4Cu 42Zr5.3TM5.3(TM = Co, Fe) metallic glass sheets prepared by twin-roller casting method

Ichiro Seki, Hisamichi Kimura, Akihisa Inoue

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Since Ti-based glassy alloys have high strength and high corrosion resistance, it is useful for an application field of substitution material for biomaterials such as living body bone. For the biomaterial use, the glassy alloys are required to substitute the harmful elements for the human body such as Ni. In the present study, we prepared the Ti47.4Cu 42Zr5.3TM5.3(TM = Co, Fe) glassy alloy sheets by a twin-roller casting method, and investigated their thermal stability and mechanical properties. The prepared alloy sheets had flat surfaces with highly white luster, and exhibited a distinct glass transition typical to a glassy phase. The super-cooled liquid region ATx defined by the difference between the glass transition temperature (Tg) and the onset temperature for crystallization (Tx) is 50 K for the Ni-containing alloy, 36 K for the Co-containing alloy and 32 K for the Fe-containing alloy. All the alloy sheets exhibit good bending ductility and their Vickers hardness is in the range of 590 to 600.

    Original languageEnglish
    Pages (from-to)498-501
    Number of pages4
    JournalMaterials Transactions
    Volume49
    Issue number3
    DOIs
    Publication statusPublished - 2008 Mar 1

    Keywords

    • Bending fracture strain
    • Nickel-free metallic glass
    • Thermal stability

    ASJC Scopus subject areas

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

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