| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Components
|
| Presentation Title |
Neutron Irradiation Response of SA508 Pressure Vessel Steel Prepared by Powder Metallurgy and Hot Isostatic Pressing |
| Author(s) |
Yangyang Zhao, Caleb D. Clement, Shujuan Wang, Yaqiao Wu, Katelyn Wheeler, Donna P. Guillen, David W. Gandy, Janelle P. Wharry |
| On-Site Speaker (Planned) |
Yangyang Zhao |
| Abstract Scope |
The objective of this study is to investigate neutron irradiation effect on microstructure and mechanical properties of SA508 pressure vessel steel fabricated by powder metallurgy and hot isostatic pressing (PM-HIP). Alloys produced by PM-HIP are proposed for structural and pressure-retaining applications in the nuclear power industry. However, the radiation response of PM-HIP alloys must be understood before they can be deployed. In this work, neutron irradiation to 1 dpa at 300 and 400 °C was performed on PM-HIP SA508 steel and a conventional forged counterpart. It was found that the PM-HIP sample showed higher irradiation embrittlement than the forged counterpart. Microstructural evolution was examined using scanning and transmission electron microscopy (SEM, TEM) and atom probe tomography (APT). The irradiation hardening effect was correlated with the microstructural evolution using the Orowan model. The present study provides insight into assessing the viability of using alloys manufactured by PM-HIP for nuclear reactor internals. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Iron and Steel, Mechanical Properties |