| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
8th World Congress on Integrated Computational Materials Engineering (ICME 2025)
|
| Presentation Title |
Material Physics Governing Rotary Friction Welding |
| Author(s) |
Miguel Espadero, Hector Basoalto, Simon Bray, Peter Steven |
| On-Site Speaker (Planned) |
Miguel Espadero |
| Abstract Scope |
The aim of this study is to develop a physics-based constitutive framework which enables the simulation of the thermo-mechanical fields and the microstructural evolution during rotary friction welding of precipitate-strengthened nickel-based superalloys. The primary objective is to describe the micro-mechanisms governing the flow stress behaviour during the different welding phases of the inertia welding process. A dislocation slip model has been proposed which considers the dislocation-precipitate interactions in the derivation of the plastic shear strain rates. The model has successfully studied the effect of the different materials variants for the same weld, showing it is able to replicate the response observed in experiments. One of the most valuable aspects of the framework is its ability to analyse model variables as plastic strain, volume fraction or dislocation density. By doing this, a deeper understanding of the underlying mechanisms at each stage of the process can be achieved. |
| Proceedings Inclusion? |
Undecided |