Abstract
Effect of interface stress upon the interaction between a screw dislocation and a nano-inhomogeneity is investigated. By using the complex variable method, the image force acting on the screw dislocation is obtained. The results indicate that the influence of interface stress on the motion of the dislocation near the inhomogeneity becomes significant when the radius of the inhomogeneity is reduced to nanometer scale, leading to that the normalized image force depends on the inhomogeneity size which differs from the size-independent classical solution.
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