Index Catalog // ScholarsArchive@OSU

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

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:: approved: ______________________________________________________ Julie D. Tucker The thermal

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

Acceleration of Long-Range Ordering in NiCrFe Alloys Via Proton Irradiation

Creator:: Evered, Cole E.
Abstract:: This work explores the hypothesis that proton irradiation is a feasible alternative to simulate accelerated thermal aging for Ni2Cr long-range ordered phase formation within NiCr and NiCrFe alloys. In this study, various model alloys and commercial alloys 690 and 690+P (0.01 wt.% P) were subject to 2 MeV proton irradiation...
Resource Type:: Masters Thesis
Full Text:: Irradiation Abstract approved: ______________________________________________________ Julie D

Exploring the Ductility Minimum of Niobium C103 at Intermediate Temperatures using Triaxial Tensile Specimens

Creator:: Wood, Thomas N., II
Abstract:: This work explores the mechanical properties of single-phase niobium alloy C103 from room temperature to 600°C for the purpose of expanding safe uses of the material into new applications. The study utilizes a symmetrically notched triaxial tensile specimens to manipulate the internal stress field in order to observe the changes...
Resource Type:: Masters Thesis
Full Text:: Julie D. Tucker This work explores the mechanical properties of single-phase niobium alloy C103

The Processing and Microstructures of 309L Stainless Steel Clad onto Carbon Steel with Wire-fed Directed Energy Deposition

Creator:: Bozeman, Scott C.
Abstract:: Directed energy deposition and laser cladding technologies are suitable advanced manufacturing techniques for applying corrosion-resistant claddings to large carbon steel components. In this work, we clad 309L stainless steel wire onto carbon steel substrates and examine the effects of cladding parameters (laser power and travel speed) on metallurgical bonding, composition,...
Resource Type:: Masters Thesis
Full Text:: Deposition. Abstract approved: _____________________________________________________ Julie D

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

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Creator:: Aerne, Nicholas S. J.
Abstract:: Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently employed in applications where elevated temperatures and/or corrosive environments are present due to their excellent corrosion resistance and mechanical properties. However, a gap exists around the formation, and kinetics of long-range order (LRO) Ni2Cr phase in both model binary...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Julie D Tucker Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently

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

Impact of Hot Isostatic Pressing Parameters on Interface Evolution in Uranium Molybdenum Monolithic Plate Fuel

Creator:: Koziol, Adam
Abstract:: The monolithic (plate type) Uranium 10 wt.\% Molybdenum (U-10Mo) fuel system is promising for a variety of applications, most notably for the replacement of highly enriched uranium (HEU) fuels with low enriched uranium (LEU) fuel in United State High Performance Research Reactors (U.S. HPRRs). Phase transformations and secondary phase formation...
Resource Type:: Masters Thesis
Full Text:: approved: Samuel A. Briggs Julie D. Tucker The monolithic (plate type) Uranium 10 wt.% Molybdenum (U-10Mo

ScholarsArchive@OSU

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

Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

Corrosion Resistance of Alloys in Seawater and Supercritical Carbon Dioxide Environments

Acceleration of Long-Range Ordering in NiCrFe Alloys Via Proton Irradiation

Exploring the Ductility Minimum of Niobium C103 at Intermediate Temperatures using Triaxial Tensile Specimens

The Processing and Microstructures of 309L Stainless Steel Clad onto Carbon Steel with Wire-fed Directed Energy Deposition

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

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

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

Impact of Hot Isostatic Pressing Parameters on Interface Evolution in Uranium Molybdenum Monolithic Plate Fuel

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