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本文根据耗散结构理论所建立的凝固模型,推导出的过冷度方程,指出金属的凝固与结晶凝固系数β是密切相联系的。其中结晶凝固系数为并且讨论了ρ值在不同情况下的物理意义以及β值在金属凝固中的作用。
Based on the solidification model established by the dissipative structure theory, the paper deduces the undercooling equation and points out that the solidification of the metal and the solidification coefficient β are closely related. The crystallization solidification coefficient is and the physical meaning of ρ value under different conditions and the role of β value in metal solidification are discussed.