scholarly journals Parallelization of Phase-Field Model for Phase Transformation Problems in a Flow Field

2006 ◽  
pp. 235-242
Author(s):  
Ying Xu ◽  
J.M. McDonough ◽  
K.A. Tagavi
Keyword(s):  
Phase Transformation ◽  
Flow Field ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Transformation Problems

An Approach for Modeling Transformation Plasticity Using a Phase Field Model

2011 ◽  
Vol 320 ◽  
pp. 285-290 ◽  
Author(s):  
Takuya Uehara
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Phase Field ◽  
Transformation Temperature ◽  
Field Model ◽  
Volume Fraction ◽  
Phase Field Model ◽  
Field Variable ◽  
Transformation Plasticity ◽  
Temperature Strain

In this paper, an approach for modeling transformation plasticity using a phase field model is presented. A conventional formula is utilized to represent the strain due to transformation plasticity as well as thermal expansion and transformation dilatation. A phase-field variable is introduced to express the state of phase in material instead of volume fraction, and numerical simulations under simplified conditions are demonstrated. As a result, the strain induced by phase transformation is suitably regenerated, and qualitatively appropriate temperature-strain curves are obtained. In addition, the effect of each parameter is investigated, and various dependencies, such as transformation temperature and stress, on the induced strain are demonstrated. It is then concluded that the results indicate the applicability of the presented model for practical use by adjusting the parameters.

A phase field model for phase transformation in an elastically stressed binary alloy

2005 ◽  
Vol 13 (3) ◽  
pp. 299-319 ◽  
Author(s):  
Dong-Hee Yeon ◽  
Pil-Ryung Cha ◽  
Ji-Hee Kim ◽  
Martin Grant ◽  
Jong-Kyu Yoon
Keyword(s):  
Phase Transformation ◽  
Binary Alloy ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model

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.

Anisotropic Li intercalation in a LixFePO4 nano-particle: a spectral smoothed boundary phase-field model

2016 ◽  
Vol 18 (14) ◽  
pp. 9537-9543 ◽  
Author(s):  
L. Hong ◽  
L. Liang ◽  
S. Bhattacharyya ◽  
W. Xing ◽  
L. Q. Chen
Keyword(s):  
Phase Transformation ◽  
Boundary Conditions ◽  
Phase Field ◽  
Composite Electrode ◽  
Field Model ◽  
Phase Field Model ◽  
Boundary Phase ◽  
Nano Particle

Spectral smoothed boundary phase-field model for studying phase transformation and implementing boundary conditions in a heterogeneous composite electrode.

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