| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: ICME Gap Analysis
|
| Presentation Title |
CALPHAD-based ICME Design for Additive Manufacturing: Successes and Challenges |
| Author(s) |
Wei Xiong |
| On-Site Speaker (Planned) |
Wei Xiong |
| Abstract Scope |
Phase transformations in laser melting can readily influence the mechanical properties of the 3D printed components. An effective ICME simulation with a reliable prediction of phase transformations becomes essential, and can significantly help additive manufacturing (AM) design with lower costs and reduced development cycles. In this talk, we discuss several cases by applying the CALPHAD approach for powder-bed laser melting simulation and steel powder composition design. A CALPHAD-based ICME framework is established using CALPHAD-informed thermal modeling, CALPHAD and finite element coupled phase transformation, mean-field type simulation for post-processing design. The case studies on steels and Inconel superalloys demonstrate the effectiveness of such a design framework. More importantly, knowledge gaps are identified using case studies. Supporting metallurgical experiments for model calibration and improvement are essential for the successful ICME design. The ICME framework for AM require the collaborative efforts made by mechanical engineering and materials science. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |