| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing and Kinetic Phenomena: From Thin Films and Micro/Nano Systems to Advanced Manufacturing
|
| Presentation Title |
In Situ Laser Study and Fe-Cr-Ni Thin Film System |
| Author(s) |
Kinga A. Unocic, John Lasseter, Steven Randolph, Yousub Lee, Rangasayee Kannan, Philip Rack, Stephen Jesse |
| On-Site Speaker (Planned) |
Kinga A. Unocic |
| Abstract Scope |
Additive manufacturing is rapidly becoming an enabling technology for structural materials in nuclear, aerospace and electronics applications. However, there is a current lack of knowledge and experimental data on operando microscopy that enable detailed studies on solidification and solid-state phase transformations during and following laser beam interactions. In this study, we used in situ secondary electron microscopy (SEM) and scanning transmission electron microscopy (STEM) to explore the formation of non-equilibrium phase transformations and their evolution during in situ laser beam interaction with Fe-Cr-Ni structural material at the atomic-, nano-, and micrometer scale. We investigated factors such as a laser power, pulse duration, and number of pulses on the material dewetting, morphology as well as the underlying microstructural evolution and kinetic phenomena. This work will present the in situ laser–material interactions at the nanoscale level to enhance our understanding and improve computational models. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Additive Manufacturing, Thin Films and Interfaces |