About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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ICME Gap Analysis in Materials Informatics: Databases, Machine Learning, and Data-Driven Design
|
Presentation Title |
Uncertainty Quantification and Propagation in ICME Enabled by ESPEI |
Author(s) |
Brandon Bocklund, Richard Otis, Zi-Kui Liu |
On-Site Speaker (Planned) |
Brandon Bocklund |
Abstract Scope |
The CALPHAD method is a foundational component of the ICME approach. CALPHAD models can be used directly for prediction of equilibrium properties or used in kinetic simulations of diffusion and phase transformations. CALPHAD models rely heavily on the extrapolation of unary, binary and ternary model parameters in the description of the Gibbs energy for multicomponent systems. However there has not been a viable route for quantifying, storing and propagating the uncertainty in CALPHAD models to other simulations until recently. ESPEI enables the uncertainty quantification for CALPHAD model parameters through its thermodynamic engine, pycalphad. This presentation will demonstrate the use of ESPEI for development of a ternary CALPHAD database with uncertainty quantification and propagation. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |