Relationships between the activation energies (QA and QB) of self-diffusion of each component and the concentration CB of a completely disordered binary solid solution are derived on the basis of a quasi-chemical model.

• 在准化学模型基础上,导出了具有面心立方及体心立方点阵的完全无序二元固溶体的自扩散激活能与组元浓度的关系。 这种关系表明:(1)当两组元的原子尺寸接近相同时,两组元自扩散激活能之差与组元浓度的关系为一直线。