Fully coupled segregation and precipitation kinetics model with ab initio input for the Fe-Au system

For designing new and improved materials, predictive modeling of precipitation and segregation kinetics is required. So far, no modeling approach is available that couples precipitation with ab initio segregation data. We derive the mathematical basis for a model to describe segregation and precipit...

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Published in:Acta materialia 2023-01, Vol.244, p.118577, Article 118577
Main Authors: Scheiber, D., Svoboda, J., Fischer, F.D., Böhm, H.J., Romaner, L.
Format: Article
Language:English
Subjects:
Grain boundary segregation
Kinetics
Phase boundaries
Precipitation
Thermodynamics
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creator Scheiber, D.
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description For designing new and improved materials, predictive modeling of precipitation and segregation kinetics is required. So far, no modeling approach is available that couples precipitation with ab initio segregation data. We derive the mathematical basis for a model to describe segregation and precipitation kinetics with grain boundary segregation energies obtained from ab initio simulations. The model is implemented rigorously and validated with experimental data on a Fe-Au system from literature. [Display omitted]
doi_str_mv 10.1016/j.actamat.2022.118577
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subjects Grain boundary segregation
Kinetics
Phase boundaries
Precipitation
Thermodynamics
title Fully coupled segregation and precipitation kinetics model with ab initio input for the Fe-Au system
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