| About this Abstract |
| Meeting |
10th International Symposium on Superalloy 718 and Derivatives (2023)
|
| Symposium
|
Superalloy 718 and Derivatives
|
| Presentation Title |
Application of CALPHAD Based Tools to Modeling of Alloy 718 |
| Author(s) |
Paul Mason, Carl-Magnus Lancelot, Taiwu Yu, Thomas Barkar, Adam T. Hope |
| On-Site Speaker (Planned) |
Paul Mason |
| Abstract Scope |
For forty years, CALPHAD based tools have been used to design alloys of industrial importance and gain insight into composition-process-structure-property relationships. This presentation will illustrate how such tools can be applied to alloy 718 and its derivatives for applications relevant to solidification, heat treatment and additive manufacturing. Examples will be given of calculations made under equilibrium and non-equilibrium conditions to predict phase stability, phase transformation temperatures and thermophysical properties, such as density, coefficients of thermal expansion and thermal conductivity which can be used in an ICME framework. The simulation of precipitation kinetics for non-isothermal heat treatments to predict volume fraction, coarsening and average size of precipitates will also be described along with how such calculations can be extended to model yield strength. Finally, examples will be given of how CALPHAD can be incorporated to improve the accuracy of finite element simulations for additive manufacturing. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |