About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
Presentation Title |
SCC Performance of Repaired 304L |
Author(s) |
Gabriella Marino, J. Srinivasan, B. Sutton, J. Li, G. Daehn, A. Vivek, R. Thodla, A. Shapiro, A. J. Ramirez, J. S. Locke |
On-Site Speaker (Planned) |
Gabriella Marino |
Abstract Scope |
The presence of atmospheric salts and residual stresses in 304L stainless steel canisters used for long term storage of spent nuclear fuel presents the risk of initiating stress corrosion cracking (SCC). This study investigated the SCC performance of various repair techniques. Five different repair processes – gas tungsten arc welding, friction stir welding, cold spray, soldering, and vaporizing foil actuator welding – were applied to 304L stainless steel four-point bend samples, which were then tested following ASTM G-36 (boiling magnesium chloride). These results will be compared to the base and sensitized 304L material to down-select repair processes with the best SCC resistance. Once the optimal repair processes are identified, systematic electrochemical and mechanical testing to assess the corrosion and SCC performance of the joining techniques will be performed. |
Proceedings Inclusion? |
Planned: |