Phase field modeling of dendritic coarsening during isothermal

Phase field modeling of dendritic coarsening during isothermal

Blog Article

Dendritic coarsening in Al-2mol%Si alloy during isothermal solidification at 880K was investigated by phase field modeling.Three coarsening mechanisms operate in the alloy: (a) melting of small DEEP OCEAN MINERALS dendrite arms; (b) coalescence of dendrites near the tips leading to the entrapment of liquid droplets; (c) smoothing of dendrites.Dendrite melting is found to be dominant in the stage of dendritic growth, whereas coalescence of dendrites and smoothing of Hats dendrites are dominant during isothermal holding.The simulated results provide a better understanding of dendrite coarsening during isothermal solidification.