caa a22 4500 46323118X CHVBK 20180405153242.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-0906-x doi (NATIONALLICENCE)springer-10.1007/s10853-006-0906-x Plastic anisotropy in aluminum and copper pre-strained by equal channel angular extrusion [Elektronische Daten] [Irene Beyerlein, David Alexander, Carlos Tomé] The mechanical response of as-processed equal channel angular extrusion materials is anisotropic, depending on both direction and sense of straining. The stress-strain curves exhibit hardening characteristics different from the usual work hardening responses, e.g., Stages I-IV, expected in annealed fcc metals under monotonic loading. In this work, the anisotropic flow responses of two pure fcc metals, Al and Cu, processed by route Bc are evaluated and compared based on pre-strain level (number of passes), direction of reloading, sense of straining (i.e., compression versus tension), and their propensity to generate subgrain microstructures and to rearrange, should the slip activity change. In most cases, either macroscopic work softening or strain intervals with little to no work hardening are observed. Application of a crystallographically based single-crystal hardening law for strain-path changes [Beyerlein and Tomé, Int. J. Plasticity (2007)] incorporated into a visco-plastic self-consistent (VPSC) model supports the hypothesis that suppression of work hardening is due to reversal or cross effects operating at the grain level. Springer Science+Business Media, LLC, 2006 Beyerlein Irene Theoretical Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut Alexander David Materials Science and Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut Tomé Carlos Materials Science and Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1733-1750 0022-2461 42:5<1733 2007 42 10853 https://doi.org/10.1007/s10853-006-0906-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0906-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beyerlein Irene Theoretical Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut NATIONALLICENCE 700 1- Alexander David Materials Science and Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut NATIONALLICENCE 700 1- Tomé Carlos Materials Science and Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1733-1750 0022-2461 42:5<1733 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer