Grain boundary diffusion coefficient

The grain boundary diffusion coefficient is the diffusion coefficient (during atomic diffusion) of a diffusant along a grain boundary in a polycrystalline solid.[1] At lower temperatures in metals and metal alloys, this diffusion term may dominate the effective diffusion rate.

References

P. Heitjans, J. Karger, Ed, “Diffusion in condensed matter: Methods, Materials, Models,” 2nd edition, Birkhauser, 2005, pp. 1-965.

See also

Kirkendall effect
Phase transformations in solids
Mass diffusivity

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