形核率 meaning in Chinese
nucleation rate
Examples
- It is firstly found that for alloys in metastable region , with enhancement of atomic interaction energy , volume fraction and density of " phase particulate are increased , size and nucle ' ation rate of ordered phase raised , decline pace of composition in disordered matrix around the order phase is accelerated , composition order parameter and long range order parameter of ordered phase increased , i . e . process of clustering and ordering are accelerated
首次发现，随着原子间相互作用势的增加，亚稳区合金中有序相的体积分数和颗粒密度有所增加，有序相的尺寸和形核率有所提高，有序相周围的无序基体浓度的降低有所加快，有序相内的成分序参数和长程序参数有所提高，即促进了原子簇聚过程和有序化程度。 - The forming - nucleus drive power could form numerous little crystal nucleus under natural melting temperature . the formation of tic particles in the melt could be divided into two phases which was forming - nucleus and growth . the forming mechanism of tic was : melting ti first surrounded c , then ti melting in the alloy and c formed a complicated reaction mesosphere on the carbon surface
根据热力学及动力学分析，认为在碳颗粒界面处tic的形核率很高，形核驱动力足以在正常的熔炼温度下形成众多的小晶核；熔体中tic颗粒的合成可分为形核与长大两个阶段，其形核机制为：首先活性ti原子包围c ，溶入合金中的ti与c在碳表面形成一复杂反应中间层，随着反应进行， ti和c颗粒不断减少，生成的tic不断弥散分布于熔体中；其长大过程伴随着tic颗粒的相互堆砌、聚集和形态规则化。