About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
In Tribute to Robert Wagoner: A Pioneer in Metal Forming and Constitutive Modeling
|
| Presentation Title |
Interfacial Plasticity of Proton-Irradiated Metals |
| Author(s) |
Dongchan Jang |
| On-Site Speaker (Planned) |
Dongchan Jang |
| Abstract Scope |
Structural metals and alloys used in nuclear applications often experience significant reductions in plasticity due to high-dose ionizing radiation, leading to radiation-induced embrittlement. Efforts over the past few decades have focused on mitigating this issue by utilizing crystallographic interfaces, such as phase or grain boundaries, which effectively serve as sinks for irradiation-induced point defects. However, these boundaries can also impede dislocation glide, potentially causing embrittlement if present in excess. Thus, strategies that balance high plasticity with the ability to absorb radiation-induced defects are crucial for developing radiation-tolerant materials.
This presentation highlights recent studies on the effects of proton irradiation on interfacial plasticity in nano-twinned copper focused on twin boundaries. Nano-tension experiments on specimens containing these specific interfaces demonstrate their dual capability to absorb radiation damage while facilitating plasticity. These findings provide valuable insights for developing novel nuclear materials for advanced energy systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, Characterization |