About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture
|
| Presentation Title |
Anisotropic Creep and Fatigue Behavior of Laser Powder Bed Fusion 316H |
| Author(s) |
Malachi Nelson, Heramb Mahajan, Michael McMurtrey, Mark Messner, Xuan Zhang, Yiren Chen, Caleb Massey |
| On-Site Speaker (Planned) |
Malachi Nelson |
| Abstract Scope |
Qualification of structural materials for use in nuclear reactors requires extensive mechanical testing which can be especially demanding for high-temperature and time-dependent mechanisms such as creep and fatigue. Additive manufactured techniques such as laser powder bed fusion (LPBF) produce significant anisotropy dependent on the raster direction, further expanding the required test matrix. Early results indicate that creep damage is a more significant when stressed in the transverse direction while fatigue damage is more significant when stressed in the build direction. The creep-fatigue interaction is also discussed with respect to anisotropy affecting and accelerating those mechanisms. These results are discussed in the context of qualification and how to perform creep-fatigue analysis for anisotropic behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |