| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure and Dynamics of Metallic Glasses
|
| Presentation Title |
Assessing Printability of Bulk Glass-Forming Alloys and Composites using Single and Multi-Track Laser Experiments |
| Author(s) |
Soumya Mohan, Harrison Holberton, Aaron Stebner, Douglas C. Hofmann |
| On-Site Speaker (Planned) |
Soumya Mohan |
| Abstract Scope |
Conventional manufacturing techniques for bulk metallic glass (BMG) forming compositions are limited in part dimension and composition due to the requirements of very high critical cooling rates to suppress crystallization. Additive manufacturing (AM) removes this cooling rate restriction and is an emerging technology for BMGs. However, AM of BMGs has many challenges (poor build density, cracks, pores, etc.), and a larger process window is desirable to allow for microstructure optimization. High throughput screening of bulk metallic glasses to assess the printability using single-track and multi-track laser experiments was done on 4 glass-forming compositions with very different conventional glass-forming abilities and potential applications. The crystallinity of the fusion zone and the heat-affected zone, and the presence of cracks were observed across a process parameter window. Conventionally poor glass formers showed great potential for AM, and glass-forming ability was not a good predictor of AM printability. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Solidification |