About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
|
Presentation Title |
Comparison of Phenomenological and Machine Learning Approaches to Model Inconel 718 Recrystallization Mechanisms |
Author(s) |
Romain Bordas, Yann Jansen, Antoine Gomond, Eric Georges |
On-Site Speaker (Planned) |
Romain Bordas |
Abstract Scope |
The development of a recrystallization model is a particularly difficult operation, given the large number of parameters involved, but is nevertheless of great interest for controlling the microstructure of cast and wrought superalloy products. A phenomenological model of recrystallization has been developed in recent years at Aubert&Duval, based on the example of Inconel 718 conversion. This model gave fairly satisfactory results, but also showed certain limitations in its application. Therefore, this work focused first on improving the model, by identifying its parameters using optimization algorithms, and then on developing a new model based on Machine Learning and experimental data. The improvements achieved by the new models were highlighted, especially the feasibility of a Machine Learning model for such an application was demonstrated. Finally, several areas for improvement were identified, including some unrealistic local behaviors, and taken into account to increase the reliability of the model. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Machine Learning, Shaping and Forming |