| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2023
|
| Presentation Title |
Morphological Impacts on the Stress Relaxation and Strain Rate Sensitivity in Tungsten Heavy Alloy (WHA) |
| Author(s) |
Zachary S. Levin, Taylor Jacobs, K. T. Hartwig |
| On-Site Speaker (Planned) |
Zachary S. Levin |
| Abstract Scope |
Tungsten heavy alloy composed of 90W-7Ni-2Fe rods were plastically deformed via Equal Channel Angular Extrusion (ECAE) at 300°:C, to elongate the tungsten particles. The rods were then heat treated at either 500°C, 700°C, or 1000°C, to determine the influence of the worked microstructures in the matrix and tungsten phases. The mechanical properties of heat-treated samples were compared to an as-received rod with spherical tungsten particles that was also heat-treat to 1000oC. Stress relaxation and jump test experiments were utilized to investigate the deformation mechanisms and the strain rate sensitivities relative to tungsten particle morphology. As-received, ECAE processed and postmortem WHA was also characterized by nano indentation to create young’s modulus and hardness maps, to investigate the tungsten-matrix interactions. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Mechanical Properties, Characterization, |