About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Industry
|
| Presentation Title |
An Evaluation of Zircaloy-4 Powder Properties and Binder Jetting Parameters for Optimum Green Density |
| Author(s) |
Lucas Raimondi, Mar Stevenson, Thomas Kopasko, Pierangeli Rodríguez De Vecchis, Adam Thompson, Jonathan Ruffley, Zachary Harris, Markus Chmielus |
| On-Site Speaker (Planned) |
Lucas Raimondi |
| Abstract Scope |
There is significant interest in leveraging additive manufacturing (AM) to produce complex geometry components of Zr-based alloys, but reactivity challenges hinder the use of beam-based AM techniques. The objective of this study is to assess the viability of binder jet printing as a means for fabricating high green density parts of Zircaloy-4, focusing on the role of powder characteristics and printing parameters. Zircaloy-4 powder is produced by hydriding Zircaloy-4 plate using high temperature gaseous hydrogen, followed by ball milling, resulting in powder with three distinct size distributions. A printing study was then performed to identify the interrelationship between optimal green density, printing parameters, and input powder size. Powders were then mixed to create bimodally distributed feedstocks, followed by an additional printing parameter optimization. Characterization of the green samples using Archimedes density measurements, profilometry, optical microscopy, and scanning electron microscopy reveals clear trends between powder characteristics, green part density, and microstructure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, |