About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Mechanical Behavior of Nuclear Reactor Materials and Components III
|
Presentation Title |
O-10: Mechanical Testing and Characterization of an Integrated Welding and Thermal Processing Method on Eurofer97 |
Author(s) |
Daniel Codd, Joseph McCrink, Tim G Lach, Xiang (Frank) Chen |
On-Site Speaker (Planned) |
Daniel Codd |
Abstract Scope |
Reduced Activation Ferritic Martensitic (RAFM) steels, such as Eurofer97, have been identified as attractive candidates for fusion structural materials. Conventional weldments require post weld heat treatments (PWHT) to restore material performance, which can be associated with risks of distortion and cracking; alternative solid-state or adhesive joining methods can limit design flexibility. This study examines Eurofer97 GTAW weld specimens created using a novel integrated welding and thermal process, designed to improve the ductility and toughness of as-welded joints without subjecting the assembly to a separate energy intensive PWHT. Mechanical performance is compared for conventional welds and the integrated process, including cross-weld tensile, creep and guided weld bend ductility testing. Microstructural analysis, hardness mapping and advanced characterization methods are also employed to compare the resultant welded joints. |
Proceedings Inclusion? |
Planned: |
Keywords |
Joining, Nuclear Materials, Process Technology |