| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Sustainability of High Temperature Alloys
|
| Presentation Title |
Recrystallization criteria for Nickel-based single cristal superalloys |
| Author(s) |
Besnik Sadriji, Nicolas Leriche, Louise Grau, Jonathan Cormier |
| On-Site Speaker (Planned) |
Besnik Sadriji |
| Abstract Scope |
Very high temperatures are reached in certain zones of an aircraft engines. Hence, Nickel-based single-crystal superalloys are used as material for different parts like turbine blades. In addition, their geometries have been complexified to resist the agressive thermo-mechanical loading applied. The advanced geometries induce areas with high stress concentrations leading to the possible recrystallization (RX) after subsequent heat treatment. Recrystallized parts, by definition, do not have the required mechanical properties and hence, are not acceptable.
In order to avoid recrystallization, a numerical methodology has been built to determine a RX criteria that can be used to improve the production of turbine blades. This development is based on the experimental campaign presented by Grau et al., with complex tensile tests at very high temperatures. The criteria is based on the plastic deformation and energy. Experimental and numerical readjusting is used to determine the on/off value. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Modeling and Simulation, |