| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Dimensional and Geometrical Changes During Sintering of Binder Jetted Components |
| Author(s) |
Elisa Torresani, Thomas Grippi, Alberto Cabo Rios, Marco Zago, Ilaria Cristofolini, Alberto Molinari, Eugene Olevsky |
| On-Site Speaker (Planned) |
Elisa Torresani |
| Abstract Scope |
This study details the sintering behavior of stainless steel 316L components produced by the binder jetting process. It explores the effects of initial particle and pore distribution, gravity, and friction on sintering, which lead to anisotropic shrinkage and shape distortions. Dilatometry tests were conducted to experimentally investigate the anisotropic behavior and microstructural evolution at different sintering temperatures. The influence of gravity and friction forces during sintering is experimentally investigated through the analysis of distortions in sintered parts with overhangs and tee-pipe connectors. Additionally, this work presents a novel sintering simulation framework for gravity-affected sintering of stainless steel. The framework includes the Rios-Olevsky-Hryha sintering model and a constitutive law incorporating material constants to account for powder packing effects and the delta-ferrite transformation occurring at high temperatures. |
| Proceedings Inclusion? |
Planned: |