Investigation of the deformation structure in an aluminium magnesium alloy by high angular resolution three-dimensional X-ray diffraction

The deformation structure in individual grains of an aluminium magnesium alloy deformed up to 10% in tension is characterized with high angular resolution three-dimensional X-ray diffraction. The three-dimensional intensity distribution (in reciprocal space) of all reflections investigated is rather smooth. The absence of individual sharp peaks indicates the absence of a dislocation cell structure, which was confirmed by transmission electron microscopy. Nevertheless, the formation of different orientation components associated with different elastic strains is evident within a grain.