About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
A Novel Nanoparticle Ink Approach for Improved Density and Mechanical Performance in Binder-Jetted Inconel 718 |
| Author(s) |
Yavuz Yıldız, Berk Bayram Tanrısevdi, İdil Mumcu, Kaan Mehmet Tokgözlü, Simge Çınar-Aygün, Eren Yunus Kalay |
| On-Site Speaker (Planned) |
Yavuz Yıldız |
| Abstract Scope |
Binder jetting of Inconel 718 is limited by residual porosity and contamination in sintered parts. In this study, full process workflow of a stable ink (Z=3.31) containing Inconel 718 nanoparticles was formulated with a low MW PEG dispersant and monomeric TEG-DMA binder in ethanol solvent. The ink was jetted using a custom-designed binder jetting system, and green parts were obtained upon curing at 200 °C. To evaluate debinding behavior, TGA was conducted on green bodies under both argon and air atmospheres; moreover, high-resolution synchrotron XRD was performed on a green body partially debinded at 450 °C in air to investigate phase evolution. After optimizing the debinding and sintering process, the resulting parts reached >98% relative density. Microhardness measurements showed a 13% increase in strength compared to parts produced using nanoparticle-free ink. These results demonstrate that nanoparticle-based ink formulations can significantly enhance the densification and mechanical performance of binder-jetted Inconel 718 components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, High-Temperature Materials |