An error of dislocation density evaluation from a micrograph of densely spaced dislocation lines

Abstract

When the dislocation density is evaluated by the line intercept method from a micrograph of densely spaced dislocations, a certain fraction of dislocation intersections with the test lines may be missed by the observer. The resulting error can be interpreted by a limited resolution of dislocation images in counting the intersections. Our model allows the error either to be estimated or to be avoided by a choice of an appropriate magnification of the micrograph.