| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Smoothed Particle Hydrodynamics Model for Friction Stir Processing of 316 L Stainless Steel: Process Modeling and Microstructure Evolution Analysis |
| Author(s) |
Ayoub Soulami, Lei Li, Neil Henson, Erin Barker, Eric Smith |
| On-Site Speaker (Planned) |
Ayoub Soulami |
| Abstract Scope |
Friction stir processing (FSP) is a solid-phase processing technique that provides localized modification and control of microstructures in the processed zones. Numerical models can help predict material deformation and temperature history during FSP that directly relate to microstructural refinement, densification, and homogeneity of the processed zone. This work presents a meshfree smoothed particle hydrodynamics (SPH) model for FSP of 316 L stainless steel using a thermo-elasto-plastic constitutive model and stick-slip tool-workpiece contact approach. The model’s predicted material flow, temperature distribution, and stress-strain state are presented and compared with experimental data. The strain rate and temperature histories obtained from the SPH model are used for predicting Zener-Hollomon parameter and average material grain size. Numerical results on the microscale are also found to agree with experimental observations. Based on the numerical results, optimized FSP parameters and tool designs are suggested to achieve desired grain size in the FSP processed zone. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Modeling and Simulation, Computational Materials Science & Engineering |