Secondary phases in quasicrystal-reinforced Mg-3.5Zn-0.6Gd Mg alloy

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

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    The secondary phases in quasicrystal-reinforced Mg-Zn-Gd alloys are investigated by transmission electron microscopy. The orientation relationships between the dendritic I-phase and the Mg matrix are identified to be [11 2¯ 0]Mg ∥[2-fold]I-phase and (0001)Mg ∥(5-fold)I-phase. We also find that the dendritic I-phase is brittle along 2-fold, 5-fold, and 3-fold atomic planes during hot extrusion. Moreover, new orientation relations [1¯ 101]Mg ∥[mirror 2-fold]I-phase and (0 1¯ 11)Mg ∥(5-fold)I-phase are found between nanoscale I-phase and Mg matrix. The findings have implications for our understanding of excellent mechanical properties of the I-phase-strengthened Mg alloys.

    Original languageEnglish
    Article number8020
    Pages (from-to)132-136
    Number of pages5
    JournalMaterials Characterization
    Volume108
    DOIs
    Publication statusPublished - 2015 Oct 1

    Keywords

    • Extrusion
    • Magnesium alloys
    • Orientation
    • Precipitation
    • Quasicrystal

    ASJC Scopus subject areas

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

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