About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
D-14: Effect of Processing Parameter on Microstructure and Mechanical Property of Fused Filament Fabricated 17-4 PH Stainless Steel |
| Author(s) |
Sina Alipour, Trevor J. Fleck, Le Zhou |
| On-Site Speaker (Planned) |
Sina Alipour |
| Abstract Scope |
Metal fused filament fabrication (FFF) is an appealing alternative to conventional manufacturing techniques, providing several competitive advantages. However, gaps in understanding printing and post-processing parameters limit the ability to obtain superior material properties. This work aims to develop a baseline understanding of the processing-structure-property (PSP) relationship in FFF metals. Using a low-cost FFF printer and 17-4 PH stainless steel filament, this study explores the debinding, sintering and heat treatment conditions (e.g., temperature and time) using an in-house vacuum furnace. Defects, microstructure and phase transformation due to different processing were characterized using electron microscopy, X-ray diffraction and tomography, and correlated to the mechanical properties. The results are compared to 17-4PH processed by conventional methods to highlight the difference in PSP relationship. Initial findings indicate promise for FFF in producing metal components, and insights regarding residual porosity after debinding and sintering as well as phase transformation pathways are discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Phase Transformations |