Abstract
The grain boundary diffusion in a binary system which exhibits a grain boundary phase transition is considered in the framework of Fisher's model. The kinetic law of the growth of the grain boundary phase and the distribution of the diffusant near the grain boundary are calculated. The method of determining of the concentration dependence of the grain boundary diffusion coefficient from the experimentally measured penetration profiles of the diffusant along the grain boundaries is suggested. The experimental results on Zn diffusion in Fe(Si) bicrystals, Ni diffusion in Cu bicrystals and grain boundary grooving in Al in the presence of liquid In are discussed in light of the suggested model.
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Rabkin, E. Grain boundary interdiffusion in the case of concentration-dependent grain boundary diffusion coefficient. Interface Sci 3, 219–226 (1996). https://doi.org/10.1007/BF00191049
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DOI: https://doi.org/10.1007/BF00191049