| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Equipment, Instrumentation and In-Situ Process Monitoring
|
| Presentation Title |
Advancements in Microstructure Control in Additive Manufacturing through Operando X-Ray Studies |
| Author(s) |
Adrita Dass, Akane Wakai, Atieh Moridi |
| On-Site Speaker (Planned) |
Atieh Moridi |
| Abstract Scope |
This presentation unveils recent advancements in microstructure control in additive manufacturing (AM) through two operando x-ray diffraction studies. First, we delve into harnessing phase metastability for grain size control in AM using a FeMnCoCr system. By strategically manipulating phase stability, we achieve notable grain refinement and breakdown of epitaxial columnar grain growth, offering new avenues for tailoring materials with desired grain sizes and morphology. Second, we investigate dendritic deformation modes in AM using operando x-ray diffraction, analyzing thermomechanical deformation during solidification. Understanding phenomena such as torsion, bending, and fragmentation aids in optimizing printing strategies to obtain specific microstructural features, advancing the control of AM-produced parts' mechanical properties and defects. This work represents a significant step forward in the realm of microstructure control in additive manufacturing, shedding light on novel strategies for grain size manipulation and deformation analysis. |