| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Modeling In-Situ Phase Transformation in Inconel 718 and EH36: A Study Using Phase Field and Phase Fraction Models |
| Author(s) |
Jakub Mikula, Rajeev Ahluwalia, Robert Laskowski, Kewu Bai, Kai Ren, Youxiang Chew, Guglielmo Vastola, Yong-Wei Zhang |
| On-Site Speaker (Planned) |
Jakub Mikula |
| Abstract Scope |
Additive manufacturing often falls short in developing a microstructure that meets the desired performance criteria, typically necessitating a post-print heat treatment process to achieve optimal results. However, the inherent versatility of additive manufacturing can, under certain printing conditions, potentially substitute or significantly reduce the need for post-print heat treatment by enabling in-situ heat treatment or pre-designing phase fractions. The aim of our study is to investigate the applicability of a phase transformation model to simulate such behavior. To this end, we have investigated two material systems: Inconel 718 and EH36 marine steel. We utilized a phase field model to study phase transformations in Inconel and a phase fraction model to examine phase transformations in EH36. This presentation will cover the implementation of these models and the associated challenges of simulating such phenomena at the part-scale for both powder bed fusion (PBF) and directed energy deposition (DED) processes. |