The evolution of texture and microstructure uniformity in high-purity tantalum (Ta) sheets during 135° warm cross rolling (WCR) was analyzed detail. X-ray diffraction suggested that relatively uniform ‘ideal’ deformation distribution across the thickness could be obtained from WCR, since more potential slip systems activated. Electron backscatter (EBSD) results indicated change strain path enha...

Employing a recent modeling scheme for grain boundary sliding [Zhao et al. Adv. Eng. Mater.2017, doi:10.1002/adem.201700212], crystallographic textures were simulated for nanocrystalline fcc metals deformed in shear compression. It is shown that, as grain boundary sliding increases, the texture strength decreases while the signature of the texture type remains the same. Grain boundary sliding a...

Grain oriented steels are widely used for electrical machines and components, such as transformers reactors, due to their high magnetic permeability low power losses. These outstanding properties the crystalline structure known Goss texture, obtained by a suitable process that is well-known in widespread use among industrial producers of ferromagnetic steel sheets. One most interesting research...

An AM30 magnesium alloy was processed through ECAP method at 200 °C. Optical and transmission electron microscopy as well as electron back scattered diffraction (EBSD) technique were employed to characterize the deformed microstructure. A partially recrystallized microstructure including ultrafine/nano structures was obtained. The area fraction of 49% was measured for the recrystallized regions...

A theory for abnormal grain growth (AGG) in polycrystalline materials is revisited and extended in order to predict AGG in textured polycrystals. The motivation for the work is to improve our understanding of the origins of the Goss texture component, {110}<001>, during annealing of Fe-Si sheet. Since the AGG phenomenon in grain-oriented electrical steels is known to be dependent on the presenc...

Nanocrystalline metals with average grain sizes of only a few nanometers have recently been observed to fail through the formation of shear bands. Here, we investigate this phenomenon in nanocrystalline Ni which has had its grain structure stabilized by doping with W, with a specific focus on understanding how strain localization drives evolution of the nanoscale grain structure. Shear banding ...