About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Thermodynamics and Kinetics of Alloys
|
Presentation Title |
Study on Densification Kinetics of the Binder Jetted Fine 316L SS Powder |
Author(s) |
Mohammad Jamalkhani, Maciej Dorula, Elijah Roberts , Julia Adelnita Deguia , Amir Mostafaei |
On-Site Speaker (Planned) |
Mohammad Jamalkhani |
Abstract Scope |
With the growth of binder jetting, an understanding of microstructural evolution and densification within large parts during sintering is necessary. Gas atomized 316L SS powder is 3D-printed and vacuum-sintered to extend existing knowledge of sintered binder jetted fine powder. Sintering temperature and holding time affect linear shrinkage, densification and pore evolution. Stereological measurements was applied on scanning electron micrographs. A database of grain and pore intercept length, pore separation, surface area per unit volume and number of pore sections per unit area will be developed to better understand sintering kinetics, microstructural evolution and, finally, sintering mechanisms of binder jetted 316L SS. Also, densification behavior and deformation will be studied using an innovative in-situ optical imaging system in which anisotropy shrinkage in binder jetted alloys are visualized during sintering. These in-situ observations can be used to validate simulations and numerical model during sintering of binder jetted parts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Biomaterials, Characterization |