Phase-field study of the effects of the multi-controlling parameters on columnar dendrite during directional solidification in hexagonal materials

PFM (phase field method) was employed to study microstructure evolution, and considering the effect of solute concentration to the undercooling, we developed a phase field model for binary alloy on the basis of pure substance model. In the paper, the temperature field and solute field were coupled together in the phase field model to calculate the crystal growth of magnesium alloy in directional solidification. The simulation results showed a non-planar crystal growth of planar to cellular to columnar dendrite, the comparison of different dendrite patterns were carried out in the numerical simulation, and with the increasing of the anisotropy, the second dendrite arms became more developed.

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Two-dimensional phase-field study of competitive grain growth during directional solidification of polycrystalline binary alloy

Journal of Crystal Growth ◽

10.1016/j.jcrysgro.2016.01.036 ◽

2016 ◽

Vol 442 ◽

pp. 14-24 ◽

Cited By ~ 53

Author(s):

Tomohiro Takaki ◽

Munekazu Ohno ◽

Yasushi Shibuta ◽

Shinji Sakane ◽

Takashi Shimokawabe ◽

...

Keyword(s):

Field Study ◽

Directional Solidification ◽

Grain Growth ◽

Binary Alloy ◽

Phase Field ◽

Two Dimensional

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2D Phase-Field Simulation of the Directional Solidification Process

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.704.17 ◽

2014 ◽

Vol 704 ◽

pp. 17-21 ◽

Cited By ~ 3

Author(s):

Alexandre Furtado Ferreira ◽

José Adilson de Castro ◽

Ivaldo Leão Ferreira

Keyword(s):

Directional Solidification ◽

Phase Field ◽

Field Model ◽

Solid Phase ◽

Morphological Evolution ◽

Phase Field Model ◽

Columnar Dendrite ◽

Liquid Region ◽

Field Equations ◽

Cu Alloy

The microstructure evolution during the directional solidification of Al-Cu alloy is simulated using a phase field model. The transformation from liquid to solid phase is a non-equilibrium process with three regions (liquid, solid and interface) involved. Phase field model is defined for each of the three regions. The evolution of each phase is calculated by a set of phase field equations, whereas the solute in those regions is calculated by a concentration equation. In this work, the phase field model which is generally valid for most kinds of transitions between phases, it is applied to the directional solidification problem. Numerical results for the morphological evolution of columnar dendrite in Al-Cu alloy are in agreement with experimental observations found in the literature. The growth velocity of the dendrite tip and the concentration profile in the solid, interface and liquid region were calculated.

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Phase-field study of competitive dendritic growth of converging grains during directional solidification

Acta Materialia ◽

10.1016/j.actamat.2011.11.037 ◽

2012 ◽

Vol 60 (4) ◽

pp. 1478-1493 ◽

Cited By ~ 77

Author(s):

Junjie Li ◽

Zhijun Wang ◽

Yaqin Wang ◽

Jincheng Wang

Keyword(s):

Field Study ◽

Directional Solidification ◽

Phase Field ◽

Dendritic Growth

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Grain growth competition during thin-sample directional solidification of dendritic microstructures: A phase-field study

Acta Materialia ◽

10.1016/j.actamat.2016.09.055 ◽

2017 ◽

Vol 122 ◽

pp. 220-235 ◽

Cited By ~ 50

Author(s):

D. Tourret ◽

Y. Song ◽

A.J. Clarke ◽

A. Karma

Keyword(s):

Field Study ◽

Directional Solidification ◽

Grain Growth ◽

Phase Field ◽

Thin Sample ◽

Dendritic Microstructures

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Growth competition between columnar dendrite and degenerate seaweed during directional solidification of alloys: Insights from multi-phase field simulations

Materials & Design ◽

10.1016/j.matdes.2019.108250 ◽

2020 ◽

Vol 185 ◽

pp. 108250 ◽

Cited By ~ 10

Author(s):

Hui Xing ◽

Mingyue Ji ◽

Xianglei Dong ◽

Yumin Wang ◽

Limin Zhang ◽

...

Keyword(s):

Directional Solidification ◽

Phase Field ◽

Columnar Dendrite ◽

Multi Phase

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Numerical Simulation of Binary Alloy Crystal Growth Using Phase-Field Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.842.57 ◽

2013 ◽

Vol 842 ◽

pp. 57-60 ◽

Cited By ~ 1

Author(s):

Yan Bo Dong ◽

Ming Chen ◽

Xi Wang

Keyword(s):

Crystal Growth ◽

Directional Solidification ◽

Binary Alloy ◽

Phase Field ◽

Phase Field Model ◽

Solidification Process ◽

Phase Field Method ◽

Columnar Dendrite ◽

Competitive Growth ◽

Directional Solidification Process

The competitive growth of multiple dendrites and crystal growth of directional solidification in a Mg-Al binary alloy were simulated using phase-field model, and the effect of undercooling value on the microstructural dendritic growth pattern in directional solidification process was studied in the paper. The simulation results showed the impingement of the adjacent grains, which made the dendrite growth inhibited in the competitive growth of multiple dendrites, and in directional solidification process, quantitative comparison of different undercooling values that predicted the columnar dendrite evolution were carried out. With the increasing of the undercooling value, the dendrite tip radius and second dendrite arms became smaller, and the crystal structure is more uniform and dense.

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