| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
| Presentation Title |
A-34: Thermal Cycles Induced Phase Evolution in IN718 during Additive Manufacturing: a Gleeble Study |
| Author(s) |
Nana Kwabena Adomako, Nima Haghdadi, Xiaozhou Liao, Simon Ringer, Sophie Primig |
| On-Site Speaker (Planned) |
Nana Kwabena Adomako |
| Abstract Scope |
Additive manufacturing (AM) has recently received significant attention due to its ability to produce complex, near-net-shape components with minimal material waste. It has been widely adopted for making parts of high-performance nickel-based superalloys such as IN718, for applications in modern aero-engines. However, a complete understanding of the microstructural evolution, such as γ′, γ′′, Laves, and δ phases transformations during printing, is still lacking. The complex AM thermal cycles cause several morphological changes to these phases. However, observing these transformations during printing is challenging as an in-situ measurement technique is needed. In this study, we introduce alternate techniques to investigate the effects of thermal cycles on the phase evolution of IN718 components during additive manufacturing. This involves using the Gleeble physical simulator to perform cyclic heating and quenching experiments and the thermokinetic analysis software package, MatCalc, as a guide to determine the expected phases under equilibrium. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, Other |