• Login
    View Item 
    •   SMARTech Home
    • Georgia Tech Theses and Dissertations
    • Georgia Tech Theses and Dissertations
    • View Item
    •   SMARTech Home
    • Georgia Tech Theses and Dissertations
    • Georgia Tech Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Atomistic Investigation of Irradiation Resistance of Heterophase Metallic Boundaries

    Thumbnail
    View/Open
    CHEN-DISSERTATION-2019.pdf (57.41Mb)
    Date
    2019-10-10
    Author
    Chen, Elton
    Metadata
    Show full item record
    Abstract
    The overall purpose of this dissertation is to explore the complex mechanisms underneath the irradiation resistance of metallic phase boundaries. Materials in nuclear applications are constantly exposed to harsh radiation environments throughout their service lives. Interactions between high energy radiation sources and the atoms of the material will inevitably produce nanoscale defects in the crystal lattice. In large quantities, these radiation defects are known to cause swelling, embrittlement, and nano-scale crack growth, all of which negatively impact the mechanical performance of the material and can possibly lead to component failure. One of the most promising solutions to defect accumulation is to leverage the defect sink properties of the grain boundaries. By creating new nano-composites/laminates/multilayers with high concentrations of boundaries, modern materials engineers are able to significantly improve the irradiation resistance of conventional metals. In order to further refine the design of these next-gen materials, it is crucial to first understand the complex relationships between radiation defects and boundaries over a large range of radiation doses. To this end, we have employed multiple advanced atomistic modeling methods in this dissertation to examine the various aspects of radiation defect production, accumulation, and evolution, as well as the interaction of radiation damage with phase boundaries and its effects on mechanical performance.
    URI
    http://hdl.handle.net/1853/64027
    Collections
    • Georgia Tech Theses and Dissertations [23877]
    • School of Mechanical Engineering Theses and Dissertations [4086]

    Browse

    All of SMARTechCommunities & CollectionsDatesAuthorsTitlesSubjectsTypesThis CollectionDatesAuthorsTitlesSubjectsTypes

    My SMARTech

    Login

    Statistics

    View Usage StatisticsView Google Analytics Statistics
    facebook instagram twitter youtube
    • My Account
    • Contact us
    • Directory
    • Campus Map
    • Support/Give
    • Library Accessibility
      • About SMARTech
      • SMARTech Terms of Use
    Georgia Tech Library266 4th Street NW, Atlanta, GA 30332
    404.894.4500
    • Emergency Information
    • Legal and Privacy Information
    • Human Trafficking Notice
    • Accessibility
    • Accountability
    • Accreditation
    • Employment
    © 2020 Georgia Institute of Technology