电磁搅拌作用下非树枝晶铝合金组织演变过程的数学描述

Semi-quantitative mathematical description of evolution of non-dendritic structure of aluminum alloy under electromagnetic stirring condition

研究了电磁搅拌法制备半固态铝合金原材料工艺中 ,主要工艺参数 (磁场强度和冷却速度 )与非树枝晶组织之间的关系 ,半定量地描述了非树枝晶组织的演变过程 ,给出了非树枝晶组织参数随着磁场强度和冷却速度变化的数学关系 ,为合理选择工艺参数提供了理论指导。

The relationship between the main technological parameters(magnetic induction and cooling rate) and the non dendritic structure of aluminum alloy produced by electromagnetic stirring was studied. The evolution of the non dendritic structure was semi quantitative described, and the semi quantitative relationship between the magnetic induction and cooling rate and the non dendritic structure parameters was obtained, which offer the theoretic direction to choose the technological parameters for producing the aluminum alloy with non dendritic structure.