About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|
| Presentation Title |
Process Parameter Control of Submicron Particle During Immiscible Alloy Rapid Solidification via LPBF |
| Author(s) |
Fanyue Kong, Ji Ma |
| On-Site Speaker (Planned) |
Fanyue Kong |
| Abstract Scope |
Immiscible alloys, such as Cu-Fe, offer high strength and excellent electrical conductivity, making them attractive for structural and functional applications. However, conventional solidification techniques face challenges in controlling their microstructures due to inherent phase separation and mismatched thermal properties. This study explores the use of LPBF to fabricate immiscible alloys by harnessing rapid solidification and tunable process parameters to promote effective elemental mixing and tailored microstructural features. By employing a combination of high and low scan velocities, phase interaction and particle distribution were strategically manipulated. Key mechanisms—including Marangoni convection and recoil pressure were identified as drivers of particle formation and migration. The results show that lower scan velocities facilitate complete mixing, while higher scan velocities favor the retention of ultrafine droplets through rapid cooling. This work demonstrates the capability of LPBF to precisely engineer immiscible alloy microstructures, providing a scalable approach for the development of advanced materials with enhanced performance. |
| Keywords |
Additive Manufacturing, |