Application of radioisotopes to studies of deformation of solids
Blackburn, David A.
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It has been the purpose of the present work to measure diffusion rates in metallic grain boundaries; to find whether these rates are influenced by relative motion in the boundary plane of the contiguous crystals, and to interpret the results of the investigation in terms of recent theories of metal structure. The back- ground to this work is of a dual nature and is concerned with the form of intercrystalline boundaries and with diffusion in strained systems. Accordingly a review will be made of past and present grain boundary theories and of the present position with regard to the effect of straining on measurements of bulk diffusion coefficients.