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Oak Ridge Chapter Presents Caleb P. Massey, ORNL on April 22, 2021 (RingCentral)

  • 1.  Oak Ridge Chapter Presents Caleb P. Massey, ORNL on April 22, 2021 (RingCentral)

    Cleveland Chapter Adm
    Posted 04-18-2021 11:26
      |   view attached
    The Oak Ridge Chapter of ASM International presents:

    Dr. Caleb P. Massey
    Research Staff, Oak Ridge National Laboratory

    "Using Complimentary Techniques to Design and
    Optimize Advanced Nuclear Materials"

    Awards Night

    Thursday, April 22nd, 2021 (7:00 PM ET)
    Social hour starts at 6:30 PM ET
    Virtual Event via RingCentral

    Abstract: The primary obstacle currently preventing the development of large-scale, carbon-free nuclear
    fission and fusion energy systems centralizes around the lack of materials that can withstand the extreme
    conditions associated with these hostile environments. For structural materials with body centered cubic crystal
    structures, such as ferritic steels, their initial beneficial mechanical properties can quickly deteriorate as
    irradiation-induced defects cause significant hardening, embrittlement, phase-separation, and swelling
    depending on irradiation dose and temperature. One strategy to mitigate deleterious irradiation phenomena is
    to create a high density of sinks, or defect trapping sites, within a material to capture and annihilate nanoscale
    defects, thereby reducing measurable macroscale property changes during irradiation. In this presentation, the
    optimization of one such material system, an oxide-dispersion strengthened (ODS) Fe-based alloy, is described.
    Using a combination of complimentary experimental techniques such as atom probe tomography and smallangle
    neutron scattering, optimal thermomechanical processing parameters for this ferritic alloy are
    investigated through a careful examination of the nucleation, growth, and coarsening of the nanoscale dispersed
    particles that give the ODS alloy its beneficial properties.

    Speaker Bio: Caleb Massey is a staff member in the Advanced Fuel Fabrication and Instrumentation at
    Oak Ridge National Laboratory. His research focuses on irradiation effects on materials, with a strong focus on
    advanced fuel and cladding systems for nuclear reactors. He joined the Nuclear Fuel Materials Group in 2019
    after completing his Ph.D. in Nuclear Engineering at the University of Tennessee, Knoxville. Dr. Massey's
    research interests span a variety of topics, including fundamental irradiation effects on fuel and structural
    materials, the use of mechanical alloying to design novel material systems, thermomechanical processing effects
    on metals and alloys, additive manufacturing of nuclear components, and the behavior of fuel/cladding systems
    in normal and transient reactor operating regimes.

    Virtual Meeting Details:
    • PC, Mac, Linux, iOS or Android:
    Password: 687592

    Ryan Paul
    R&D Associate
    Oak Ridge National Laboratory
    Oak Ridge TN
    (330) 719-4136