This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.103.184111 in citations.
Please use the identifier: http://hdl.handle.net/2128/28033 in citations.
Quantitative nondiagonal phase field modeling of eutectic and eutectoid transformations
Quantitative nondiagonal phase field modeling of eutectic and eutectoid transformations
We develop a three-phase field model for the simulation of eutectic and eutectoid transformations on the basis of a nondiagonal model obeying Onsager relations for a kinetic cross coupling between diffusion and the phase fields. This model overcomes the limitations of existing phase field models con...
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Personal Name(s): | Wang, Kai |
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Boussinot, Guillaume / Brener, Efim A. / Spatschek, Robert (Corresponding author) | |
Contributing Institute: |
JARA - HPC; JARA-HPC Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Physical review / B, 103 (2021) 18, S. 184111 |
Imprint: |
Woodbury, NY
Inst.
2021
|
DOI: |
10.1103/PhysRevB.103.184111 |
Document Type: |
Journal Article |
Research Program: |
Battery Failure - Interfacial stability and non-diagonal phase field models Fundamentals and Materials |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/28033 in citations.
We develop a three-phase field model for the simulation of eutectic and eutectoid transformations on the basis of a nondiagonal model obeying Onsager relations for a kinetic cross coupling between diffusion and the phase fields. This model overcomes the limitations of existing phase field models concerning the fulfillment of local equilibrium boundary conditions at the transformation fronts in the case of a finite diffusional contrast between the phases. We benchmark our model in the well understood one-sided case with diffusion only in the parent phase against results from the literature. In addition to this solidification scenario, the case of solid-state transformations with diffusion in the growing phases is investigated. Our simulations validate the relevance of the theory developed by Ankit et al. [Acta Mater. 61, 4245 (2013)], that describes in a single frame the two limiting regimes where diffusion mainly takes place whether in the mother phase or in the growing phases. In both the one-sided and two-sided cases, we verify the necessity of the kinetic cross coupling for quantitative phase field simulations. |