| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Microstructure, Defects, and Properties
|
| Presentation Title |
Phase-Field Modeling of Sintering for Metal Additive Manufacturing |
| Author(s) |
Rui Dong, Wenda Tan |
| On-Site Speaker (Planned) |
Rui Dong |
| Abstract Scope |
Sintering has become increasingly important in the additive manufacturing of metals and other engineering materials and is a critical step that determines the final microstructure (i.e., porosity, micro-cracking, and grain texture) and properties of the printed parts. In this work, we present our ongoing effort to develop a Phase-Field model to simulate the powder densification, grain growth, and element diffusion during sintering. The model uses thermodynamic descriptions from the CALPHAD database and the dimensional coefficients to calculate the energy density function for the materials. The model is validated against experimental results and then used to investigate the microstructure evolution kinetics during sintering. |