About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification Methods for Nuclear Reactor Structural Materials
|
| Presentation Title |
Effect of shock deformation on hardening due to self-ion irradiation in stainless steel 316L |
| Author(s) |
Dhriti Bhattacharyya, Tao Wei, Zeljko Pastuovic, Juan Pablo Escobedo-Diaz |
| On-Site Speaker (Planned) |
Dhriti Bhattacharyya |
| Abstract Scope |
In this work the effect of shock deformation on hardening due to Fe self-ion irradiation at 300 °C in stainless steel 316 has been studied. The energy of the iron ions was varied from 16 MeV to 1.5MeV in four steps, starting with the highest energy, in decreasing order to the lowest energy, to achieve an approximately uniform damage profile. The irradiated samples were characterized using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD) and tested using nanoindentation. The results indicate that the regions with high plastic strain resulting from the pre-ion irradiation high strain rate deformation exhibited a lower increase in hardness after irradiation, and the difference in hardness between the irradiated and unirradiated regions in the deformed material decreased with time. This was attributed to the absorption of radiation induced defects in the dislocation network, thus reducing the irradiation hardening effect in regions of high plastic deformation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, Characterization |