Glass transition behavior of Al- and Mg-based amorphous alloys

Akihisa Inoue, Katsumasa Ohtera, Masayoshi Kohinata, An Pang Tsai, Tsuyoshi Masumoto

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)

    Abstract

    AlNi(Y, La or Ce) and MgNi(La or Ce) amorphous alloys were found to exhibit a glass transition prior to their crystallization. The Tg increases from 440 to 582 K with increasing solute concentration. The difference in Cp between amorphous solid (AS) and supercooled liquid (SL) reaches 10 to 18 J/mol-K and the viscosities of these supercooled liquids are of the order 1014 N.s./m2. By the transition of AS to SL, the Young's modulus and tensile strength decrease steeply by 80 to 99 %, accompanied with an increase of elongation by 5 to 36 times.

    Original languageEnglish
    Pages (from-to)712-715
    Number of pages4
    JournalJournal of Non-Crystalline Solids
    Volume117-118
    Issue numberPART 2
    DOIs
    Publication statusPublished - 1990 Feb 1

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Materials Chemistry

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