About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
High Temperature Creep Properties of Advanced Structural Materials
|
Presentation Title |
Crystal Plasticity Creep Modeling in Cobalt Based Superalloys |
Author(s) |
Shahriyar Keshavarz, Carelyn Campbell, Andrew Reid |
On-Site Speaker (Planned) |
Shahriyar Keshavarz |
Abstract Scope |
The current work centers on analyzing and predicting the creep responses of cobalt-based superalloys utilizing crystal plasticity finite element methods. The model captures the effects of composition and morphology including the average size, volume fraction, and shape of the precipitates. A homogenized composition-dependent activation energy-based crystal plasticity model is developed assimilating the detailed attributes of morphology. The model can significantly expedite the computational process due to the parameterized representation of the leading features while retaining accuracy. The glide and climb dislocation mechanisms are considered the key components of the constitutive model through which the thermo-mechanical behavior of cobalt-based superalloys is addressed for an extensive temperature spectrum. The method is validated for diverse compositions, temperatures, and load intensities via experimental data. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Copper / Nickel / Cobalt, Modeling and Simulation |