About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging for Materials Science and Processing
|
| Presentation Title |
Operando Synchrotron X-Ray Imaging Characterization of Laser-Based Directed Energy Deposition of Cu-Zr using Stranded Wires |
| Author(s) |
Neethu Nazar, Jiayun Shao, Xingyang Li, Sihang Feng, Kyle Mumm, Zhiyuan Li, Chihpin Chuang, Tao Sun |
| On-Site Speaker (Planned) |
Neethu Nazar |
| Abstract Scope |
Large-scale economic production of copper-based material systems using laser-based additive manufacturing techniques is of critical interest due to its significant applications in the aerospace and biomedical industries. However, the high reflectivity of copper to infrared lasers impedes its printability significantly. To overcome this limitation, a novel feedstock modification technique was developed in this study and characterized for the first time using an operando synchrotron high-energy X-ray imaging technique.
Additive manufacturing of Cu-Zr was successfully performed using laser-based directed energy deposition (DED) by stranding together copper and zirconium wire feedstocks in multiple compositional ratios, enabling zirconium to improve the laser absorptivity. This process was imaged in real-time using a synchrotron source, and the intricate melt pool dynamics, solidification processes, and phase transformations were analyzed in detail. Further, the real-time imaging observations were used to develop computational fluid dynamics models of stranded wire DED for predictive process parameter optimization. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Other |