Anomalous effect of lattice misfit on the coarsening behavior of multicomponent L12 phase

Feng He, Kaiwei Zhang, Guma Yeli, Yang Tong, Daixiu Wei, Junjie Li, Zhijun Wang, Jincheng Wang, Ji jung Kai

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The multicomponent L12 phase in high entropy alloys (HEAs) has shown excellent thermal stability. However, the understanding of its intrinsic origins is limited to the Lifshitz-Slyozov-Wagner (LSW) theory. In the present study, we investigate the influence of lattice misfit, which is not considered in LSW theory, on the coarsening kinetics of the multicomponent L12 phase. Different from that in most traditional alloys, the coarsening constant of multicomponent L12 particles decreases with the increasing lattice misfit in HEAs. This finding provides a new view for understanding the sluggish coarsening kinetics of L12 phase in HEAs.

    Original languageEnglish
    Pages (from-to)111-116
    Number of pages6
    JournalScripta Materialia
    Volume183
    DOIs
    Publication statusPublished - 2020 Jul 1

    Keywords

    • Coarsening kinetics
    • High entropy alloys
    • Lattice misfit
    • Thermal stability

    ASJC Scopus subject areas

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

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