TY  - JOUR
AU  - Wang, Kai
AU  - Boussinot, Guillaume
AU  - Brener, Efim A.
AU  - Spatschek, Robert
TI  - Quantitative nondiagonal phase field modeling of eutectic and eutectoid transformations
JO  - Physical review / B
VL  - 103
IS  - 18
SN  - 2469-9969
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2021-02748
SP  - 184111
PY  - 2021
N1  - ISSN 2469-9969 not unique: **2 hits**.
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000655899000002
DO  - DOI:10.1103/PhysRevB.103.184111
UR  - https://juser.fz-juelich.de/record/893676
ER  -