Explanation

The phenomenon of segregation that reduces the free energy of the system after the occurrence of segregation. equilibrium segregation generally occurs at lattice defects (including grain boundary and dislocation core. Due to the disorder of crystal structure at the defect, the energy of the solute atom at the lattice defect will be lower than that at the complete lattice position, so the solute atom will spontaneously tend to enter the lattice defect. The concentration of solute protons at the lattice defect will be higher than its average concentration. equilibrium segregation belongs to microscopic segregation. It is also commonly called solute equilibrium segregation.

Classification