About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanics at the Extremes: Bridging Length-Scales From Nanoscale to Bulk
|
| Presentation Title |
Defect-Shock Interactions in Ion Irradiated Al1100 |
| Author(s) |
Calvin Robert Lear, David Jones, Daniel Tito Martinez, Matthew Tito Chancey, Yongqiang Wang, Nan Li, Saryu Jindal Fensin |
| On-Site Speaker (Planned) |
Calvin Robert Lear |
| Abstract Scope |
While the effects of irradiation on mechanical performance continue to receive significant study, interactions between radiation-induced defects and dynamic deformation (>10^6/s) are not well understood. In this study, Al1100 samples were irradiated using helium and silicon ions at room temperature to create three distinct irradiation conditions: He only, Si only, and Si-He (sequential irradiations). These conditions provided combinations of radiation-induced dislocation loops, helium bubbles, and voids for shock testing. Samples were shocked using a gas gun system, with impact occurring on the unirradiated surface and soft-recovery used to capture the irradiated region for post-impact characterization. Impact diagnostics, electron microscopy, and nanomechanical testing (nanoindentation, nano-compression) results will be discussed in terms of the effects of radiation-induced defects on shock and of shock on damage evolution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Mechanical Properties, |