| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Sustainability of High Temperature Alloys
|
| Presentation Title |
Simulation of the mechanical behavior during solidification and possible recrystallization during heat treatment stages of a nickel-based single-crystal superalloys |
| Author(s) |
Louise Grau, Jonathan Cormier, Patrick Villechaise, Besnik Sadriji, Florent Mauget |
| On-Site Speaker (Planned) |
Louise Grau |
| Abstract Scope |
Nickel-based single-crystal superalloys like AM1, CMSX-4 and CMSX-4 Plus are used to manufacture parts located in hot zones of aircraft engines. Their geometries have been complexified, making it more difficult to manufacture, particularly in areas with high stress concentrations. This difficulty results from the possible introduction of plastic deformation upon solidification and further cooling to room temperature, possibly leading to recrystallization (RX) during subsequent solution heat treatment which is unacceptable. The aim of the study is to improve the process by simulating the mechanical behavior during solidification and possible recrystallization during heat treatment stages in order to understand how to avoid the recrystallization. To this end, several experiments have been carried out: Isothermal tensile tests at very high temperatures in the super-γ'-solvus state with a particular interested in the applied thermomechanical history (i.e. on-heating /on-cooling rheology) and non-isothermal tensile tests simulating the thermomechanical path experienced by a part during solidification. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Solidification, Mechanical Properties |