Phase-Field Simulation of Three-Dimensional Dendritic Growth

2010 ◽  
Vol 97-101 ◽  
pp. 3769-3772 ◽  
Author(s):  
Chang Sheng Zhu ◽  
Jun Wei Wang
Keyword(s):  
Computational Methods ◽  
Phase Field ◽  
Interfacial Energy ◽  
Dendritic Growth ◽  
Field Model ◽  
Three Dimensional ◽  
Phase Field Model ◽  
Computational Time ◽  
Field Simulation ◽  
Undercooled Melt

Based on a thin interface limit 3D phase-field model by coupled the anisotropy of interfacial energy and self-designed AADCR to improve on the computational methods for solving phase-field, 3D dendritic growth in pure undercooled melt is implemented successfully. The simulation authentically recreated the 3D dendritic morphological fromation, and receives the dendritic growth rule being consistent with crystallization mechanism. An example indicates that AADCR can decreased 70% computational time compared with not using algorithms for a 3D domain of size 300×300×300 grids, at the same time, the accelerated algorithms’ computed precision is higher and the redundancy is small, therefore, the accelerated method is really an effective method.

Research on Phase-Field Model of Three-Dimensional Dendritic Growth for Binary Alloy

2015 ◽  
Vol 12 (11) ◽  
pp. 4289-4296 ◽  
Author(s):  
Li Feng ◽  
Jinfang Jia ◽  
Changsheng Zhu ◽  
Yang Lu ◽  
Rongzhen Xiao ◽  
...  
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Three Dimensional ◽  
Phase Field Model

scholarly journals Phase field model for three-dimensional dendritic growth with fluid flow

2001 ◽  
Vol 64 (4) ◽  
Author(s):  
Jun-Ho Jeong ◽  
Nigel Goldenfeld ◽  
Jonathan A. Dantzig
Keyword(s):  
Fluid Flow ◽  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Three Dimensional ◽  
Phase Field Model

scholarly journals Large Scale Simulation of Dendritic Growth in Pure Undercooled Melt by Phase-field Model.

1999 ◽  
Vol 39 (4) ◽  
pp. 335-340 ◽  
Author(s):  
Seong Gyoon Kim ◽  
Won Tae Kim ◽  
Jae Sang Lee ◽  
Machiko Ode ◽  
Toshio Suzuki
Keyword(s):  
Phase Field ◽  
Dendritic Growth ◽  
Large Scale ◽  
Field Model ◽  
Phase Field Model ◽  
Large Scale Simulation ◽  
Undercooled Melt

Dependence of Dendritic Growth on Convention with PFM Simulation

2011 ◽  
Vol 689 ◽  
pp. 85-90
Author(s):  
Chang Sheng Zhu ◽  
Jin Gui ◽  
Zhi Ping Wang ◽  
Feng Li
Keyword(s):  
Flow Field ◽  
Computational Methods ◽  
Binary Alloy ◽  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Phase Field Model ◽  
Field Equations ◽  
Dendritic Branches ◽  
Solute Composition

A binary alloy PFM (Phase-Field Model) which incorporates the flow field equations is constructed considering the dependence of microstructure on convention. Al-Cu binary alloy is investigated numerically based on the model, and the reasonable computational methods is studied for solving PFM, the effect of convention on dendritic growth and microsegregation patterns is implemented successfully. The computed results indicate that, the larger convention velocity U, the more developed the upstream dendritic branches is, and the more acutely the solute composition in the upstream dendritic solid fluctuates is. But the severity of microsegregation ahead of interface reduces. Nevertheless, the more undeveloped the downstream dendritic branches, the more acutely the solute composition in the the downstream dendritic solid fluctuates is, but the severity of microsegregation ahead of interface aggravates.

scholarly journals Simulations of three-dimensional dendritic growth using a coupled thermo-solutal phase-field model

2015 ◽  
Vol 107 (5) ◽  
pp. 053108 ◽  
Author(s):  
P. C. Bollada ◽  
C. E. Goodyer ◽  
P. K. Jimack ◽  
A. M. Mullis
Keyword(s):  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Three Dimensional ◽  
Phase Field Model

scholarly journals Phase-field modeling of grain evolutions in additive manufacturing from nucleation, growth, to coarsening

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Min Yang ◽  
Lu Wang ◽  
Wentao Yan
Keyword(s):  
Additive Manufacturing ◽  
Phase Field ◽  
Field Model ◽  
Three Dimensional ◽  
Phase Field Model ◽  
Nucleation Theory ◽  
Experimental Result ◽  
Classical Nucleation Theory ◽  
Validation Experiment ◽  
Powder Particles

AbstractA three-dimensional phase-field model is developed to simulate grain evolutions during powder-bed-fusion (PBF) additive manufacturing, while the physically-informed temperature profile is implemented from a thermal-fluid flow model. The phase-field model incorporates a nucleation model based on classical nucleation theory, as well as the initial grain structures of powder particles and substrate. The grain evolutions during the three-layer three-track PBF process are comprehensively reproduced, including grain nucleation and growth in molten pools, epitaxial growth from powder particles, substrate and previous tracks, grain re-melting and re-growth in overlapping zones, and grain coarsening in heat-affected zones. A validation experiment has been carried out, showing that the simulation results are consistent with the experimental results in the molten pool and grain morphologies. Furthermore, the grain refinement by adding nanoparticles is preliminarily reproduced and compared against the experimental result in literature.

A Temperature-Dependent Atomistic-Informed Phase-Field Model to Study Dendritic Growth

2021 ◽  
pp. 126461
Author(s):  
Sepideh Kavousi ◽  
Austin Gates ◽  
Lindsey Jin ◽  
Mohsen Asle Zaeem
Keyword(s):  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Phase Field Model ◽  
Temperature Dependent
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