| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
Augmenting Operando Neutron Diffraction Measurement of WAAM with Multispectral Thermal Imaging |
| Author(s) |
James C. Haley, Kyle Saleeby, Clay Leach, Christopher Fancher, Thomas Feldhausen, Guru Madireddy, Yousub Lee, An Ke, Alex Plotkowski |
| On-Site Speaker (Planned) |
James C. Haley |
| Abstract Scope |
Live lattice strain evolution from complex thermal fields and phase transformations is now observable due to development of an operando neutron diffraction WAAM experimental platform (OpeN-AM). The penetrating power of neutrons enables measurement of weld pools and geometries relevant to large scale metal manufacturing. To complement the time-resolved point probe capability of the neutron source, a suite of multispectral infrared and visible cameras were deployed to spatially resolve temperature, emissivity, and distortion of the deposited component. IR spectral filtering methods were employed to correct for the natural variation in surface conditions encountered in WAAM. Topics of discussion include extensibility of methods to production AM, uncertainty quantification, applications in model validation, and the potential for dynamically targeted neutron sampling. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Process Technology |