Bulk glassy and quasicrystalline (Zr65Al7.5Cu 27.5)100-xTix Alloys and Their Mechanical Properties

J. B. Qiang, W. Zhang, Guoqiang Xie, A. Inoue

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The glass-forming ability (GFA) and thermal stability of (Zr 65Al7.5Cu27.5)100-xTix (x = 0-15; in at%) alloys have been investigated. It was revealed that a certain amount of Ti addition could improve the GFA of Zr65Al 7.5Cu27.5 alloy effectively. The best bulk metallic glass (BMG) forming composition was found at (Zr65Al7.5Cu 27.5)93Ti7. Bulk glassy samples with diameter of 7 mm were made by means of copper mold casting. Further Ti additions deteriorated GFA and led to the precipitation of icosahedral phase, and 3 mm quasicrystalline cylinder was obtained at (Zr65Al 7.5Cu27.5)90Ti10. Room temperature compression testing showed that the ouasicrvstalline alloy had a fracture strength of 1875MPa, being 300MPa larger than that of the Zr65Al 7.5Cu27.5)93Ti727.5)93117 monolithic BMG.

    Original languageEnglish
    Pages (from-to)1789-1792
    Number of pages4
    JournalMaterials Transactions
    Volume48
    Issue number7
    DOIs
    Publication statusPublished - 2007 Jul 1

    Keywords

    • Fracture
    • Glass forming ability
    • Metallic glasses
    • Quasicrystals

    ASJC Scopus subject areas

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

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