Abstract
The purpose of this paper is to describe a new experimental approach to the study of deformation heterogeneity in crystalline materials. The approach is similar to that reported by Randle, et al., but extends their work to make more precise connections with the continuum theory of dislocations introduced by Nye, and later developed by Kroner, Bilby, et al. and others. The authors first make a precise connection between the fundamental equation of continuum dislocation theory, linking the curvatures of the lattice and the elastic strain field with the dislocation tensor. A precise connection is made between lattice curvature and orientation measurements obtained from electron backscattering diffraction patterns (EBSP) by the method known as orientation imaging microscopy (OIM).
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