About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Interrelated Extremes in Materials Degradation for Fission and Fusion Environments
|
| Presentation Title |
Study on Corrosion Properties of F82H/SUS316L Dissimilar Joints Produced by Fiber Laser Welding or Friction Stir Welding |
| Author(s) |
Hisashi Serizawa, Hirotatsu KISHIMOTO, Hiroaki MORI, Naofumi NAKAZATO, Motoki NAKAJIMA, Takashi NOZAWA |
| On-Site Speaker (Planned) |
Hisashi Serizawa |
| Abstract Scope |
In the current design of DEMO reactor, a reduced activation ferritic/martensitic steel F82H pipe has to be joined to the austenitic stainless steel SUS316L and it is necessary to understand the high temperature water corrosion behavior of F82H/SUS316L dissimilar joints. The high-power fiber welding was applied to the butt welding where Inconel625 was inserted as the inter layer. In addition, these two plates were directly butt joined by using the friction stir welding. The corrosion properties of these two dissimilar joints have been evaluated by using the creviced bent beam stress corrosion cracking test. After the CBB tests, any notable defects were not observed in the surfaces of both joints although the difference of corrosion behavior between F82H and SUS316L has been detected in the surface of joints. Then, it can be concluded that both the welding and the joining methods seem to be applicable for producing F82H/SUS316L dissimilar pipe. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Environmental Effects, Iron and Steel |