About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Advanced Characterization With Synchrotron, Neutron, and In Situ Laboratory-scale Techniques IV
|
| Presentation Title |
Using synchrotron radiation to understand microstructure and defect formation in additive manufacturing |
| Author(s) |
Mark A. Easton, Yunhui Chen, Dong Qiu, Jayshri Dumbre, Zherui Tong |
| On-Site Speaker (Planned) |
Mark A. Easton |
| Abstract Scope |
Understanding microstructure and defect formation is one of the biggest challenges facing materials and manufacturing research. Often materials with excellent properties are developed but cannot be processed effectively for reasons including a high propensity to defect formation and poor microstructural control. This is particularly the case for additive manufacturing where very high cooling rates refine the microstructure, promote columnar grain growth and lead to an increase thermal stresses leading to distortion and cracking. This presentation shows how in-situ synchrotron imaging has helped understand solidification phenomena in additive manufacturing including grain refinement, hot tearing and providing ground truth for thermal solidification models. Some challenging problems that can be enlightened by in-situ techniques will also be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, Characterization |