Abstract
The theory of lattice defects as sources of elastic singularities extended to non-local elasticity is applied to calculate the interaction energy and force between point defects and dislocations in the case of a special quasi-continuum. It is shown that both the interaction energies and forces due to size effect of alloying atoms and to the modulus effect of vacancies remain finite, in contrast to the result of a classical calculation when the distance between the point defects and dislocations tends to zero. A definite binding energy between point defects and dislocations can be determined. Numerical estimations for f.c.c. metals are given for both the size and modulus effect.
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