Details

Autor(en) / Beteiligte

• Zhang, Yutuo
• Zhang, Wanning
• Wang, Tie
• Fan, Liyan
• Wang, Chengzhi

Titel

Phase field modeling of dendritic coarsening during isothermal solidification

Ist Teil von

• China foundry, 2011-08, Vol.8 (3), p.313-315

Ort / Verlag

Shenyang Ligong University, Shenyan8 110159, China%Shenyang Government Investment Project Evaluation Center, Shenyang 110014, China%Dalian Jinzhou Cable Co., Ltd., Liaoning Baolin Group, Dal ian 116100, China

Erscheinungsjahr

2011

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Dendritic coarsening in AI-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 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 dendrites are dominant during isothermal holding. The simulated results provide a better understanding of dendrite coarsening during isothermal solidification.