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A structural study of the influence of pressure on shear band formation |
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| Affiliation: | 1. Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200, Australia;2. Physics, School of Science, RMIT University, Melbourne, VIC 3001, Australia;3. Neutron Scattering Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;4. School of Physics, The University of Sydney, NSW 2006, Australia |
| Abstract: | Experiments have been performed to show the influence of applied pressure on the formation of localized shear bands in a naturally aged Al-Zn-Mg alloy. The results indicate that the onset of localization is insensitive to applied pressure but that the development of the bands is pressure sensitive indicating that dilational damage occurs during the growth of bands. Detailed electron microscopy studies indicates that although the overall macroscopic orientation of the bands may be nonrational they consist of sequential regions of localized shear on crystallographic planes and narrow regions of multi-slip. |
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