About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Neutron and X-ray Scattering in Materials Science
|
Presentation Title |
L-58: Residual Stress Mapping in a Dissimilar Metal Weldment Using Neutron Diffraction |
Author(s) |
Brent J. Heuser, Weicheng Zhong, Jun-Li Lin, Yan Chen, Zhen Li, Ke An, Benjamin Sutton |
On-Site Speaker (Planned) |
Brent J. Heuser |
Abstract Scope |
The engineering diffractometer VULCAN was used to quantify residual stress in a SA508-304L weldment with 309L butter and 308L groove filler material. The weldment was nuclear grade and fabricated by EPRI. Residual stress is a first order effect in irradiation assisted stress corrosion cracking of weldments in nuclear power plants. The entire heat affected zone as well as the base metals were scanned. In addition, a comb dnot sample was measured. Large tensile residual stresses and large gradients are observed near the SA508-309L butter interface. This coincides with observed cracking in hot water immersion tests with proton irradiated material. Discussion will focus on correlations between residual stress, hardness, microstructure, radiation damage, and cracking. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Nuclear Materials, |