| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Simulating Microstructure in Metallic Materials Applied for Additive Manufacturing Processes |
| Author(s) |
Javed Akram, Thaddeus Low |
| On-Site Speaker (Planned) |
Javed Akram |
| Abstract Scope |
The microstructure and composition of any metallic material highly influence the physical and mechanical properties at the macroscale level. A Cellular Automata-based microstructure model is implemented to simulate the temperature driven microstructure evolution of a material with the goal of linking Process-Structure-Property relation in AM processed metals. Nucleation and growth are the two main governing phenomena which describes the final microstructure and will be discussed in detail for both as-deposit and heat treatment phenomena. In this work, we will show particularly the setup of boundary conditions and assumptions made to simulate microstructure evolution in materials processed through metal based additive manufacturing process. The effect of different process parameters on the resulting grain morphologies and orientations of IN718 and Al357 alloy will be demonstrated using side-by-side comparison with experimental results. A Hall-Petch analysis is used to capture yield strength variation with respect to the predicted average grain size. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |