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本文依固体与分子经验电子理论建立了低合金超高强度钢30 CrMnSiNi_2A,40CrMnSiMoVA奥氏体的价电子结构。从价电子结构导致的C-Me偏聚讨论了各主加元素在相变动力学中的行为。从相变驱动力和偏聚力的交互作用讨论了合金元素对相变产物组织形态的影响。据此把超高强度钢的成份设计追溯到合金的价电子结构。
In this paper, the valence electron structures of austenite of 30 CrMnSiNi 2 A, 40 CrMnSiMoVA low-alloy ultrahigh-strength steels were established based on the solid and molecular empirical electronic theory. The C-Me segregation due to the valence electron structure discusses the behavior of each major element in the phase transition kinetics. The effect of alloying elements on the morphology of phase transformation products was discussed from the interaction of phase change driving force and cohesion force. Accordingly, the compositional design of ultrahigh strength steel is traced back to the valence electron structure of the alloy.