Glass-forming ability and properties of new Au-based glassy alloys with low Au concentrations

Hai Guo, Wei Zhang, Chunling Qin, Jianbin Qiang, Mingwei Chen, Akihisa Inoue

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    Au40Si17.20Cu28.30Ag5.7Pd 5 glassy alloys showed a wide supercooled liquid region of 42-53 K and a large reduced glass transition temperature of 0.568-0.605, indicating high stabilization of supercooled liquid and high glass-forming ability (GFA). The best GFA was obtained from Au40Si20Cu28Ag 7Pd5 alloy, and a fully glassy sample with a diameter of 6 mm could be fabricated by copper mold casting. The bulk glassy alloys exhibited very low Tg of 400-424 K, high fracture strength of over 1100 MPa, and corrosion resistance superior to SUS316L in 1NH2SO4 solution.

    Original languageEnglish
    Pages (from-to)1290-1293
    Number of pages4
    JournalMaterials Transactions
    Volume50
    Issue number6
    DOIs
    Publication statusPublished - 2009 Jun

    Keywords

    • Bulk glassy alloy
    • Corrosion resistance
    • Glass transition temperature
    • Glass-forming ability
    • Gold-based alloy
    • Mechanical property

    ASJC Scopus subject areas

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

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