Mechanism of Dendrite Armapace of Unidirectional Solidification Single-phase Alloy with Influence of Electric Current

Based on the solidification fundamental principle given by Mullins and Sekerka, sets up the differential equations of solidification interface morphology stability kinetics in the electric current.The effects of electric current strength on stability and the homologous disturbance frequency of stable state in solidification process are discussed.On the basis of these analyses, the relationship of directional solidification microstructure morphology and the electric current strength is also discussed.