Solute Interaction in Grain Boundary Segregation and Cohesion
Effect of solute interaction on interfacial segregation and grain boundary cohesion is modeled on basis of combined Guttmann and Rice-Wang approaches in binary and ternary systems. It is shown that attractive II binary interaction strengthens interfacial segregation and enhances intergranular embrittlement while repulsion exhibits an opposite effects. In a ternary system the segregation is suppressed by the IJ attraction while increased by the repulsion. The effect of the binary interaction is generally stronger compared to the ternary one.
P. Lejček "Solute Interaction in Grain Boundary Segregation and Cohesion", Key Engineering Materials, Vols. 592-593, pp. 389-392, 2014