About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Steels in Extreme Conditions
|
| Presentation Title |
Mechanical Performance Limits of FM and ODS Steels Under Extreme Conditions |
| Author(s) |
Thak Sang Byun, David A Collins, Yan-ru Lin, Weicheng Zhong, Timothy Graening , Josina W Geringer |
| On-Site Speaker (Planned) |
Thak Sang Byun |
| Abstract Scope |
Fe-Cr-based ferritic-martensitic (FM) and oxide dispersion-strengthened (ODS) ferritic steels are among the leading candidates for structural materials in future reactors, due to their excellent radiation resistance and thermal stability. ODS steels provide additional benefits, including superior creep resistance and exceptional damage tolerance, making them particularly well-suited for high-temperature fission and fusion reactor applications. This presentation aims to elucidate the intrinsic mechanical performance limits of FM and ODS steels, with a focus on mechanical property parameters that are largely independent of radiation dose and processing routes. A comparative analysis is conducted using a compiled dataset of mechanical properties for various FM and ODS steels, examining the effects of processing, irradiation, and temperature—particularly on fundamental and engineering fracture parameters critical to defining performance limits under extreme conditions. Finally, a predictive assessment of the mechanical behavior of various FM and ODS alloys is proposed based on the findings of this analysis. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, High-Temperature Materials |