About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Developments in Advanced Nuclear Structural Materials
|
| Presentation Title |
Heat Treatment Effect on the Defect Evolution in AM 316H Stainless Steel |
| Author(s) |
Wei-Ying Chen, Sanjoy Mazumder, Stephen Taller, Gyuchul Park, Jiaxuan Li, Mattew Swisher, Xuan Zhang, Lin Gao, Kai Sun, Hangyu Li, Andrea Jokisaari, Sourabh Kadambi, Shunyu Liu, Caleb Massey, Tahmid Omi, James Stubbins, Rongjie Song, Yiren Chen |
| On-Site Speaker (Planned) |
Wei-Ying Chen |
| Abstract Scope |
Additively manufactured (AM) 316 stainless steel exhibits unique microstructures due to the rapid solidification of 3D printing and typically receive post-build heat treatments. To evaluate the effect of heat treatments on irradiation performance, specimens of AM316H in the as-built, stress-relieved, solution-annealed and 20% cold-worked conditions were irradiated with either 5 MeV or 9 MeV Ni ions at temperatures from 300°C to 675°C with dose rates from 10-5 to 10-3 dpa/s up to 15 dpa, with and without concurrent helium implantation. Wrought 316L and 316H were also irradiated for comparison. TEM characterization revealed the dose and temperature dependence of void swelling and loop formation. The dislocation density variation, as impacted by the heat treatment, was found to strongly influence the incubation period for void swelling. Lower dose-rate and dual-beam irradiation data provided insight to understand neutron irradiation conditions. The results were interpreted using multiscale modeling and cluster dynamics simulations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Characterization |