A5057655294- Fusion materials and technologies
- Nuclear Materials and Properties
- Advanced materials and composites
- Welding Techniques and Residual Stresses
- Hydrogen embrittlement and corrosion behaviors in metals
- High-Velocity Impact and Material Behavior
- High Entropy Alloys Studies
- Microstructure and mechanical properties
- Additive Manufacturing Materials and Processes
- Powder Metallurgy Techniques and Materials
- Advanced Materials Characterization Techniques
- Thermodynamic and Structural Properties of Metals and Alloys
- Metal and Thin Film Mechanics
- High Temperature Alloys and Creep
- Ion-surface interactions and analysis
- Titanium Alloys Microstructure and Properties
- Laser-Plasma Interactions and Diagnostics
- Ultrasonics and Acoustic Wave Propagation
- Energetic Materials and Combustion
- nanoparticles nucleation surface interactions
- Boron and Carbon Nanomaterials Research
- Advanced Optical Sensing Technologies
- High-Temperature Coating Behaviors
- Microstructure and Mechanical Properties of Steels
- Theoretical and Computational Physics
Los Alamos National Laboratory
2019-2023
Government of the United States of America
2023
Los Alamos National Security (United States)
2021
University of Michigan
2018-2019
University of Illinois Urbana-Champaign
2014-2018
The grade 91 ferritic/martensitic steel is considered a promising structural or cladding material for various nuclear reactor applications. Here, was fabricated via the Directed Energy Deposition Laser technique. This alternative manufacturing process potentially enables tailoring of mechanical properties through increased control product's microstructure. Aimed at linking fabrication to performance defining process-structure–property relationships, current research includes macro and up...
The effect of helium (He) concentration on ejecta production in OFHC-Copper was investigated using Richtmyer–Meshkov Instability (RMI) experiments. experiments involved complex samples with periodic surface perturbations machined onto the surface. Each four target implanted a unique that varied from 0 to 4000 appm. perturbation’s wavelengths were λ ≈ 65 μ m, and their amplitudes h determine wavenumber ( 2 π / ) amplitude product k at which beganfor Cu without He. velocity mass produced...
Kinetic Monte Carlo simulations have been performed to investigate the evolution of ordered domains in model alloys under irradiation. The investigated were equiatomic binary on a simple square lattice with first and second nearest-neighbor interactions, chosen so that $2\ifmmode\times\else\texttimes\fi{}2$ structure is equilibrium phase below critical order-disorder transition temperature ${T}_{\mathrm{c}}$. ratio interactions $R$ was varied from 0 0.45 explore effect thermodynamic...
<title>Abstract</title> The mechanical behavior and microstructural evolution of a single body-centered-cubic (BCC) phase NbTaTiV refractory high-entropy alloy (RHEA) were studied over wide range strain-rates (from 1 × 10-4 to 2 103 s-1) temperatures [from room temperature (RT) 850 °C]. yield strength as function strain rate showed that the present RHEA had less strain-rate dependence strong resistance softening at high temperatures. formation thin type-I twins was observed during...
Joining nanostructured ferritic alloys (NFAs) has proved challenging, as the nano-oxides that provide superior strength, creep resistance, and radiation tolerance at high temperatures tend to agglomerate, redistribute, coarsen during conventional fusion welding. In this study, capacitive discharge resistance welding (CDRW)—a solid-state variant of welding—was used join end caps thin-walled cladding tubes NFA 14YWT. The resulting joints were found be hermetically sealed characterized across...
Damage from low-temperature irradiation and the subsequent degradation of materials performance pose significant challenges for storage radioactive peripheral components in some nuclear reactor designs. Fully understanding mechanical behavior such requires test data strain rates both quasi-static (< 10/s) dynamic ( [[EQUATION]] regimes. While testing has generally been avoided past neutron irradiated (contamination concerns) ion (insufficient volume) materials, surface-sensitive...
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