About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging for Materials Science and Processing: 10th Anniversary
|
| Presentation Title |
Revealing Al-Fe Mixing Mechanisms during Multi-material Additive Manufacturing through In-situ Synchrotron X-ray Imaging |
| Author(s) |
Junye Huang, Samuel Clark, Jiandong Yuan, Ali Nabaa, Qingyuan Li, Deepak Ayyalasomayajula, Lianyi Chen |
| On-Site Speaker (Planned) |
Junye Huang |
| Abstract Scope |
Multi-material additive manufacturing (AM) of dissimilar metals enables the fabrication of components with spatially tailored properties by integrating distinct mechanical, thermal, and chemical functionalities within a single structure. Aluminum alloys are highly desirable for integration with structural and stainless steels in aerospace, shipbuilding, and energy applications due to corrosion resistance, high thermal conductivity, and low density. However, poor metallurgical compatibility and limited interdiffusion between Al and Fe often result in weak interfacial bonding, posing significant challenges to reliable fabrication. In this study, high-speed in-situ synchrotron X-ray imaging is employed to directly observe the mixing behavior of aluminum and steel within the melt pool during laser powder bed fusion (LPBF). Real-time imaging reveals dynamic evolution of interfacial regions and mechanisms governing transition-zone morphology, dimensions, and chemical distribution. The results establish links between melt-pool dynamics and interface formation, and establish strategies for improved interfacial bonding and reliability in multi-material AM systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Process Technology |