@misc{herrnring_modeling_precipitation_2021, author={Herrnring, J., Sundman, B., Staron, P., Klusemann, B.}, title={Modeling precipitation kinetics for multi-phase and multi-component systems using particle size distributions via a moving grid technique}, year={2021}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.actamat.2021.117053}, abstract = {The collection and coupling of thermodynamic data following the Calphad framework is important for the computational alloy and process design. The microstructure and the precipitation kinetics have a significant influence on the microstructure and mechanical properties of multi-component alloys in solid state; therefore, it is essential to account for solid state phase transformations via thermo-chemical process simulations. In this work an efficient numerical scheme for a Kampmann-Wagner numerical (KWN) model, which takes into account multi-component nucleation and growth theories via the coupling to the open thermodynamic software-package OpenCalphad, is developed and implemented. By the usage of the Calphad approach, it becomes feasible to describe complex multi-component alloy systems. The developed KWN model can take into account effects resulting from the generation or annihilation of vacancies by an off-equilibrium diffusion constant. For the solution of the particle size distribution an efficient and flexible moving grid algorithm is elaborated, which provides a robust and adaptive solution scheme for the simulation of nucleation, growth, coarsening and reversion. The model is applied to simulate the precipitation kinetics of recently published in-situ anomalous small angle X-ray scattering experiments studying reversion of an AA7xxx alloy and the identified model can reproduce the essential characteristics of these reversion experiments over a wide temperature range.}, note = {Online available at: \url{https://doi.org/10.1016/j.actamat.2021.117053} (DOI). Herrnring, J.; Sundman, B.; Staron, P.; Klusemann, B.: Modeling precipitation kinetics for multi-phase and multi-component systems using particle size distributions via a moving grid technique. Acta Materialia. 2021. vol. 215, 117053. DOI: 10.1016/j.actamat.2021.117053}}