About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Towards a Future of Sustainable Production and Processing of Metals and Alloys
|
Presentation Title |
Process Modeling and Microstructure Evolution Analysis for Friction Stir Processing of 316 L Stainless Steel Using Smoothed Particle Dynamics Method |
Author(s) |
Lei Li, Ayoub Soulami, Mayur Pole, Kathy Nwe, Donald R Todd, Neil J Henson, Erin I Barker, Eric E Smith |
On-Site Speaker (Planned) |
Lei Li |
Abstract Scope |
Friction stir processing (FSP) is a solid-phase process that can locally modify microstructure in a controlled manner. The mechanical property of the processed zone is related to the underlying microstructure that is dictated by the process parameters. Understanding the relationships between process parameters and microstructure features by experimental is time-consuming and costly, and numerical models provide a viable way to address the challenges. This study presents a smoothed particle hydrodynamics (SPH) model for FSP of 316 L stainless steel with thorough experimental validations in terms of material flow, temperature, and tool force. The macroscale material responses obtained from the SPH model are used for predicting average grain size and texture based on Zener-Hollomon value and a crystal plasticity model, respectively. Numerical results on the microscale are further validated by EBSD data. Using the model, FSP parameters are optimized to achieve desired grain size and texture in the processed zone. |
Proceedings Inclusion? |
Planned: |
Keywords |
Iron and Steel, Process Technology, Computational Materials Science & Engineering |