Glass transition behavior of al-y-ni and al-ce-ni amorphous alloys

Akihisa Inoue, Katsumasa Ohtera, An Pang Tsai, Hisamichi Kimura, Tsuyoshi Masumoto

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    82 Citations (Scopus)

    Abstract

    Ductile Al-Y-Ni and Al-Ce-Ni amorphous alloys were found to exhibit a glass transition at temperatures just below crystallization temperature. The glass transition temperature increases from 490 to 582 K with increasing solute concentration. The difference in specific heat between amorphous solid (AS) and supercooled liquid (SL) reaches 9.2 J/mol-K and the temperature coefficient of expansion and viscosity of the supercooled liquid are 100×10-5 K-1 and 3×1013 poise. By the transition of AS to SL, the Young's modulus and tensile strength also decrease steeply by about 63 and 66%, accompanied with an increase of elongation by about 320%.

    Original languageEnglish
    Pages (from-to)L1579-L1582
    JournalJapanese journal of applied physics
    Volume27
    Issue number9 A
    DOIs
    Publication statusPublished - 1988 Sep

    Keywords

    • AM-(Y or Ce)-Ni systems
    • Amorphous alloy
    • Glass transition
    • Melt spinning
    • Specific heat
    • Tensile strength
    • Viscosity. Young’s modulus

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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