Effect of an element addition on relaxation of elastic distortion based on particle-blocked grain boundary sliding

金沢大学大学院自然科学研究科機能創成システムThe effect of an element addition on relaxation of elastic distortion based on particle-blocked grain boundary sliding is studied using bicrystals of Cu-Fe-Co alloy. The effect of bismuth addition on the relaxation process is examined using the moire fringe method. From the results of this study, a significant presence of Bi is evident in the interface between the matrix and the particle. Accordingly, it is stated that diffusion of Bi clusters on the matrix-particle interface occurs resulting in an increase in the activation energy and preexponential factor for the interfacial diffusion