A5070121882- Microstructure and mechanical properties
- Additive Manufacturing Materials and Processes
- Surface Treatment and Residual Stress
- Metallurgy and Material Forming
- Aluminum Alloys Composites Properties
- High Entropy Alloys Studies
- Aluminum Alloy Microstructure Properties
- Microstructure and Mechanical Properties of Steels
- nanoparticles nucleation surface interactions
- High-Velocity Impact and Material Behavior
- Advanced materials and composites
- Welding Techniques and Residual Stresses
Idaho National Laboratory
2025
Oregon State University
2021-2024
Reactor pressure vessel (RPV) steels are critical for maintaining the structural integrity and safety of nuclear reactors, designed to endure extreme conditions over prolonged operational lifetimes. Evaluating mechanical properties RPV frequently involves tests with sub-sized specimens, due size constraints associated irradiated materials. However, reduced specimen dimensions introduce a effect that alters material behavior requires correlating test results full-sized specimens. Although...
The cold angular rolling process (CARP) is being developed as a continuous severe plastic deformation technique, which can metal sheets without any length limitations at room temperature. CARP contains and equal‐channel components. sheet thickness kept consistent before after CARP, allowing multiple passes of the sheet. desired microstructure mechanical properties be achieved in processed metallic sheets. current study aimed to evaluate capability by processing copper with different widths...
Solid‐state welding of Al 1043 sheets is achieved via high‐pressure torsion (HPT) processing to produce bulk nanostructured disks. A homogeneous nanostructure without segregation observed, with grain sizes ≈430–470 nm. Miniature tensile testing, coupled the digital image correlation (DIC) technique, employed determine room‐temperature deformation behavior, particularly nonuniform behavior necking, HPT‐bonded ultrafine‐grained (UFG) aluminum, comparing it annealed coarse‐grained counterpart....
Nanostructured Al-Mg alloy was produced from disks of Mg sandwiched between Al through 100 turns high-pressure torsion (HPT) at 6.0 GPa room temperature, resulting in high microhardness Hv 300–350 regions experiencing a nominal shear strain greater than ~3500. While compositional mapping using scanning electron microscopy energy dispersive spectroscopy (EDS) showed uniform distribution the disk thickness 1.5 and 3.0 mm center, transmission EDS heterogeneous remained on nanoscale. Although...