关联系数反映了扩散的随机性,对于存在缺陷或固溶体原子的体系,间隙原子的跃迁具有方向性。着Cr和Al原子的引入,跃迁逐渐从三维各向同性跃迁转变为一维跃迁。
The correlation coefficient reflects the randomness of diffusion. For systems with defects or solid solution atoms, the transitions of intergap atoms are directional. With the introduction of Cr and Al atoms, the transition gradually changes from three dimensional isotropic transition to one dimensional transition.