Open AccessModelling of solidification microstructure evolution of twin-roll casting magnesium strip using cellular automaton
Author(s) -
Feng Huang,
Hongshuang Di,
Wang Guangshan
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.313
Subject(s) - microstructure , nucleation , materials science , cellular automaton , finite element method , casting , coupling (piping) , magnesium , directional solidification , crystal twinning , metallurgy , mechanics , thermodynamics , computer science , physics , algorithm
Cellular automaton CA is applied to simulating the microstructure evolution during the solidification and finite element method FEM was used for solving the conservation equations which govern the macro-transport phenomena during the twin-roll casting process of the magnesium strip in the molten pool. Coupling CA with FEM can predict the microstructure evolution during solidification involving nucleation and growth of the grains. On the basis of this CA-FEM methodthe effects of the main parameters involving pouring temperature casting speed and pool height on the characteristic of solidification microstructure such as grain size and orientation can be quantitatively clarified by numerical simulation which can provide the theoretical basis for the optimization of the processing parameters and the control of the solidification structure.