TY - JOUR
T1 - A simple approach toward quantitative phase field simulation for dilute-alloy solidification
AU - Shih, C. J.
AU - Lee, M. H.
AU - Lan, C. W.
N1 - Funding Information:
This research is sponsored by the National Science Council of Taiwan. The constructive comments from the reviewer are highly appreciated.
PY - 2005/9/1
Y1 - 2005/9/1
N2 - We present a simple approach that could help quantitative phase field simulation for dilute-alloy solidification. The proposed approach mends the solute trapping problem by using a simple interface model (SIM), which requires only one free parameter. To test the feasibility of this model, a free dendritic growth from a small nucleus is simulated, and a good agreement with the anti-trapping current (ATC) model [Karma, Phys. Rev. Lett. 87 (2001) 115701] is obtained. By further studying the solute trapping effect during directional solidification, we find that the results give, with this model, a good thermodynamic consistence without solute trapping over two-order increment of the solidification speed and the interface thickness. Good agreement with the classical theory is obtained as well.
AB - We present a simple approach that could help quantitative phase field simulation for dilute-alloy solidification. The proposed approach mends the solute trapping problem by using a simple interface model (SIM), which requires only one free parameter. To test the feasibility of this model, a free dendritic growth from a small nucleus is simulated, and a good agreement with the anti-trapping current (ATC) model [Karma, Phys. Rev. Lett. 87 (2001) 115701] is obtained. By further studying the solute trapping effect during directional solidification, we find that the results give, with this model, a good thermodynamic consistence without solute trapping over two-order increment of the solidification speed and the interface thickness. Good agreement with the classical theory is obtained as well.
KW - A1. Adaptive phase field simulations
KW - A1. Interface model
KW - A1. Solidification
KW - A1. Solute trapping
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U2 - 10.1016/j.jcrysgro.2005.05.052
DO - 10.1016/j.jcrysgro.2005.05.052
M3 - Article
AN - SCOPUS:23144461754
SN - 0022-0248
VL - 282
SP - 515
EP - 524
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -