Deformation of wrought uranium: Experiments and modeling

The room temperature deformation behavior of wrought polycrystalline uranium is studied using a combination of experimental techniques and polycrystal modeling. Electron backscatter diffraction is used to analyze the primary deformation twinning modes for wrought alpha-uranium. The {1 3 0} < 3 1 0 > twinning mode is found to be the most prominent twinning mode, with minor contributions from the '{1 7 2}'< 3 1 2 > and {1 1 2}'<(3 72 >' twin modes. Because of the large number of deformation modes, each with limited deformation systems, a polycrystalline model is employed to identify and quantify the activity of each mode. Model predictions of the deformation behavior and texture development agree reasonably well with experimental measures and provide reliable information about deformation systems. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.