Occurrence of shear bands in rotated Goss ({110} ⟨110⟩) orientations of metals with bcc crystal structure

The occurrence of shear bands in the rotated Goss ({110} < 110 >) orientation of Fe-1.2 wt.% Si alloy was investigated by the hypothesis of the geometric softening mechanism. The reduction of Taylor factor and the orientation evolution of in-band crystals were calculated by applying the full-constraints Taylor crystal plasticity model. The presence of in-grain shear bands and particularly the Cube-oriented crystal volumes in shear bands was predicted by the models and confirmed by experimental electron back-scattered diffraction observation. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.