Formation mechanism of quasicrystals at the nanoscale during hot compression of Mg alloys

Hua Huang, Yuan Tian, Guangyin Yuan, Chunlin Chen, Wenjiang Ding, Zhongchang Wang

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    A comprehensive transmission electron microscopy investigation was conducted to gain insights into how the secondary phases in Mg-1.50Zn-0.25Gd alloys are transformed during hot compression. It was found that needle-like Mg4Zn7 phases precipitate in Mg matrix, yet vanish during compression, forming nano-quasicrystals. These nano-quasicrystals are found to nucleate on the Mg4Zn7 phase with orientation relationships [112â€-[Mg4Zn7[2-fold] I-phase, indicating that the crystal phase can transform to the quasicrystalline phase. The formation mechanism of the quasicrystals in Mg alloys at the nanoscale is also discussed.

    Original languageEnglish
    Pages (from-to)61-64
    Number of pages4
    JournalScripta Materialia
    Volume78-79
    DOIs
    Publication statusPublished - 2014 May

    Keywords

    • Deformation
    • Mg alloys
    • Microstructure
    • Quasicrystals
    • Transformation

    ASJC Scopus subject areas

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

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