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Filtering by: Creator Schram, Julie B. Remove constraint Creator: Schram, Julie B. Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

    Creator:
    Teng, Fei
    Abstract:
    The thermal degradation of structural materials is considered to be a key factor for evaluating the lifetime of current nuclear power plants. Ni-based and Fe-based alloys, such as 690, 625, 304, and 316, are widely used in nuclear industry as structural components due to the extraordinary corrosion resistance and mechanical...
    Resource Type:
    Dissertation
    Full Text:
    . Sprouster b, George A. Young a,c, Jia-Hong Ke a, and Julie D. Tucker a, * a Materials Science Program

  • Microstructural Characterization of Porosity in U-Mo Low Enriched Uranium Plate Fuel

    Creator:
    Westman, Bjorn E.
    Abstract:
    New low enriched uranium (LEU) fuels are being developed for replacement of high enriched uranium (HEU) fuels in high power research reactors. U-Mo LEU plate fuels have been identified as a candidate for replacement of current HEU fuels. However, U-Mo fuels tend to exhibit accelerated swelling typically at fission densities...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Julie D

  • Corrosion Resistance of Alloys in Seawater and Supercritical Carbon Dioxide Environments

    Creator:
    Repukaiti, Reyixiati
    Abstract:
    The corrosion resistances of several alloys were investigated to optimize performance and cost in seawater and supercritical CO2 environments. Many alloys are prone to corrosion in seawater and/or supercritical CO2 containing impurity environments. Exposure and electrochemical experiments were conducted in both environments to evaluate alloys’ corrosion resistance. In seawater corrosion...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: ______________________________________________________ Julie Tucker The corrosion

  • Characterization and Development of Ni-based Superalloys for Supercritical Carbon Dioxide Applications

    Creator:
    Adam, Benjamin M.
    Abstract:
    The advent of supercritical CO2 as a new heat-exchange medium has seen strong interest from the power industry and the energy research field recently. It is advan- tageous in comparison with other heat-exchange cycles, as it can be operated safely at much higher temperatures and pressures, thus increasing the thermal...
    Resource Type:
    Dissertation
    Full Text:
    approved: Julie D. Tucker The advent of supercritical CO2 as a new heat-exchange medium has seen strong

  • Heat Treatment Effects on the Mechanical Properties and Microstructure of CPM-M4 Tool Steel

    Creator:
    Fast, Cody P.
    Abstract:
    Variations in heat treatments have significant effects on the microstructure of tool steels. For CPM-M4 tool steel, the changes in microstructure and mechanical properties were observed based off of variations in temperature. Five heat treatments with constant exposure time and variable austenitizing and tempering temperatures were performed on samples of...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Julie D. Tucker

  • Artificial Swarm Control Through Learning Based Leadership

    Creator:
    Tuzel, Ovunc
    Abstract:
    Collective migration in animal groups is often guided by distributed leader agents that influence their peers by modulating their motion behaviors. Distributed leadership is a promising navigation strategy for artificial swarms, but designing the leaders’ controllers is difficult due to the swarm’s collective emergent behaviors. The presented research formulates a...
    Resource Type:
    Masters Thesis
    Full Text:
    Based Leadership Abstract approved: Julie A. Adams Collective migration in animal groups is often

  • Time-Dependent Crack Growth Mechanisms in Alloy 617 at 800°C in Air

    Creator:
    Addison, Dylan, A.
    Abstract:
    Time-dependent crack growth mechanisms in Alloy 617 at 800°C in air were studied using compact tension samples machined in the L-T direction, cracked at temperature using an induction furnace and servo-hydraulic load frame. The application of different loading waveforms, including triangular, hold time, and sustained loading, were studied with relation...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Jamie J. Kruzic Julie D. Tucker Time-dependent crack growth

  • On the Role of Particle Size Distribution in Selective Laser Melting of 316L Stainless Steel

    Creator:
    Coe, Hannah G.
    Abstract:
    Selective laser melting (SLM) is an additive manufacturing (AM) process that uses a laser beam to melt metal powder as it is spread onto the build surface using a roller or scraper, followed by rapid solidification to manufacture a 3D component, one layer at a time. In SLM process, density...
    Resource Type:
    Masters Thesis
    Full Text:
    helping me reach where I am today I also want to thank my other thesis committee members, Dr. Julie

  • Modeling human expertise for providing adaptive levels of robot shared autonomy

    Creator:
    Milliken, Lauren
    Abstract:
    In shared autonomy, a robot and human user both have some level of control in order to achieve a shared goal. Choosing the balance of control given to the user and the robot can be a challenging problem since different users have different preferences and vary in skill levels when...
    Resource Type:
    Masters Thesis
    Full Text:
    to run a user study, and my committee members Dr. Cindy Grimm and Dr. Julie A. Adams for their

  • Influences of Replacing Cr with Mo in Fe25Co25Ni25Cr25-XMoX High Entropy Alloy Series on the Microstructure and Mechanical Properties

    Creator:
    Xu, Yifan
    Abstract:
    Fe25Co25Ni25Cr25-XMoX High Entropy Alloys were fabricated in mini arc-melter and then cast into 4mm diameter cylinders by injection casting technique and 1cm diameter cylinders by water quenching technique. Heat transfer modeling during solidification of FeCoNiCr HEA was simulated. Combining X-Ray Diffraction, Optical Microscopy, Scanning Electron Microscope, Energy Dispersive X-ray analysis,...
    Resource Type:
    Masters Thesis
    Full Text:
    ; (b) lattice sites with severe lattice distortion; (c) influence of temperature and distortion on