| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
Rapid Process Qualification for W-DED Ti-6Al-4V |
| Author(s) |
Jonathan W. Pegues, Brian Hoover, Timothy Ruggles, Luis Jauregui, Shaun Whetten, Andrew Kustas |
| On-Site Speaker (Planned) |
Jonathan W. Pegues |
| Abstract Scope |
Wire based directed energy deposition (W-DED) witness sampling and characterization is fundamentally more challenging than many additive manufacturing methods. There are several process-structure challenges associated with W-DED materials that can affect the microstructure and mechanical properties of these materials. Conventional approaches to process qualification are laborious and time consuming, requiring innovative approaches and technologies to rapidly iterate through the process space and achieve a desired mechanical response. High throughput tension testing and large area quantitative polarized-light microscopy are leveraged to accelerate the mechanical and microstructural characterization of W-DED Ti-6Al-4V. Large-area quantitative polarized light microscopy provides a much-needed solution to rapidly characterize large columnar prior-beta columnar grains and identify processes that result in deleterious continuous alpha grains. Results are discussed in the context of process optimization, qualification, and verification through both witness sampling and destructive part analysis.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |