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一、引言 依据化学反应速率理论和细仔平衡原理,Aziz建立了在远离平衡的快速凝固条件下溶质的非平衡分配模型.该结果被一些新近出版的有关快速凝固的专著和文献广为引用.但是H.哈肯的研究指出,在远离平衡的条件下细仔平衡条件不再满足.本文根据文献[4]的结果推广了Aziz模型,建立了快速凝固条件下溶质的非平衡分配模型.
I. INTRODUCTION Based on the theory of chemical reaction rate and the principle of atom balance, Aziz established an unbalanced distribution model of solute under rapid solidification far away from equilibrium. This result is widely cited by some recently published monographs and literature on rapid solidification. However, the study of H. Haken pointed out that the equilibrium condition of the Aberdeen quarry is no longer satisfied under the condition of being away from equilibrium. This paper extends the Aziz model based on the results in [4] and establishes an unbalanced distribution model of solute under the condition of rapid solidification.