Correlations between disorientations in neighbouring dislocation boundaries Original Research Article

During plastic deformation, dislocation structures develop with regions of different orientations separated by dislocation boundaries. Experimental investigations by means of electron back-scattering diffraction or rocking curves from X-ray diffraction give some evidence for the existence of correlations between the disorientations in neighbouring boundaries. Based on a straightforward statistical model an occurrence of anti-correlations between disorientation angles is predicted which can be traced to the limited free path of mobile dislocations carrying the plastic deformation.