About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Materials and Components III
|
| Presentation Title |
O-12: Welding Repair : Behavior Study of the Heat-Affected Zone Regarding the Risk of HAC |
| Author(s) |
Alexandre Paget, Abdelali Oudriss, Vincent Robin, Jefri Draup, Sofiane Hendili, Stéphane Cohendoz, Josselin Delmas, Xavier Feaugas, Michael C. Smith |
| On-Site Speaker (Planned) |
Alexandre Paget |
| Abstract Scope |
Electric arc welding can be used as a cladding technic after preliminary scouring to repair pressurized equipment. Specifically, we are focusing on nickel-based alloys as a filler material applied to low-alloyed ferritic steel components of the nuclear steam supplier system. Nowadays, bead tempering methods allow to reduce or suppress additional heat treatment generally utilized for mitigating the material property changes of the heat affected zone. The research works presented here are motivated by the necessity to increase the understanding of these innovative methods prior to their deployment in the nuclear industry. These changes are mainly induced by microstructural modification inherent to the high temperatures, and possibly also by hydrogen embrittlement. These two factors are strongly coupled and both lead to a drop in the metal ductility. Hence, a study to characterize this drop quantitatively was carried out through various experimental analyses and numerical simulations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Other, Modeling and Simulation |