An experimental and modeling study on the role of damage cascade formation in nanocrystalization of ion-irradiated Ni52.5Nb10Zr 15Ti15Pt7.5 metallic glass

Michael Myers, E. G. Fu, Michelle Myers, Haiyan Wang, Guoqiang Xie, X. Wang, W. K. Chu, Lin Shao

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)

    Abstract

    We have shown that 1 MeV Ni+ ion irradiation can cause nanocrystal formation in Ni52.5Nb10Zr15Ti 15Pt7.5 metallic glass (MG). The process requires precipitate formation and subsequent crystal growth within the precipitates. Temperature evolution modeling of damage cascades suggests a locally melted region within the damage cascade with substantial temperature gradients and rapid energy dissipation, with a quenching rate much larger than MG's critical cooling rate. Thus, the damage cascade regions do not directly develop nanocrystals.

    Original languageEnglish
    Pages (from-to)1045-1048
    Number of pages4
    JournalScripta Materialia
    Volume63
    Issue number11
    DOIs
    Publication statusPublished - 2010 Nov 1

    Keywords

    • Crystallization
    • Finite element analysis
    • Ion irradiation
    • Metallic glass

    ASJC Scopus subject areas

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

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