Study on Microstructural Evolution of Binary Alloy Crystal Growth in Directional Solidification Process

Dong Sheng Chen; Ming Chen; Rui Chang Wang

doi:10.4028/www.scientific.net/AMM.470.100

Paper Titles

Structural Formability of ABO₃-Type Perovskite Compounds: Bond Valence Analysis
p.84

Study on the Growth Quartz Ampoule of AgGaS₂
p.88

Study on a Novel Structure of Terbium Complex, C₆H₁₄O₁₉Tb₂
p.92

Study on a Novel Structure of Terbium Complex, C₉H₂₄O₂₁Tb₂
p.96

Study on Microstructural Evolution of Binary Alloy Crystal Growth in Directional Solidification Process
p.100

Synthesis, Structures, Properties and DFT Studies of a New Bicopper Complexe [Cu(Hdmg)₄(Hdmg)(teda)]·6H₂O
p.104

The Research Status of Self-Compensation Lubricating Composites at High Temperature
p.108

Utilization of Pineapple Leaf Fiber as Technical Fibers
p.112

Construction of the Macro-Mesoscopic Yield Criterion of Concrete Based on the Technique of Energy Density Supporting Function
p.116

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 470Study on Microstructural Evolution of Binary Alloy...

Study on Microstructural Evolution of Binary Alloy Crystal Growth in Directional Solidification Process

Abstract:

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.