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 often limited by residual porosity and chemical contamination in sintered components. In this study, a stable nanoparticle-containing ink (Z = 3.29) was formulated using a low molecular weight PEG dispersant and a thermosetting binder in ethanol solvent. The ink was deposited using a custom binder jetting system, and green parts were obtained via thermal curing. Owing to the intentionally low organic fraction, a separate debinding stage was not required. Instead, a hot insertion strategy was employed to directly initiate sintering while minimizing oxidation and carbon pickup. Carbon contents were quantified using combustion-based C/S analysis on the feedstock powder and sintered parts, with final carbon levels remaining below 0.07 wt.%. After process optimization, the components achieved >98.5% average relative density. Microhardness increased by 8% compared to parts produced with nanoparticle-free ink, demonstrating enhanced densification with maintained bulk chemical stability. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, High-Temperature Materials |