TY - JOUR
T1 - Work hardening and microstructure of AlMg5 after severe plastic deformation by cyclic extrusion and compression
AU - Richert, M
AU - Stüwe, H P
AU - Zehetbauer, Michael
AU - Richert, J
AU - Pippan, Reinhard
AU - Motz, Christian
AU - Schafler, Erhard
N1 - Zeitschrift: Materials Science and Engineering A
DOI: 10.1016/S0921-5093(03)00046-7
Affiliations: Faculty of Non-Ferrous Metals, University of Mining and Metallurgy, Krakow PL-30-059, Poland; Erich Schmid Inst.of Materials Sci., Austrian Academy of Sciences, Leoben A-8700, Austria; Institute of Materials Physics, University of Vienna, Vienna, Wien A-1090, Austria
Adressen: Zehetbauer, M.J.; Institute of Materials Physics; University of Vienna Vienna, Wien A-1090, Austria; email: [email protected]
Import aus Scopus: 2-s2.0-0038502349
04.12.2007: Datenanforderung 2001 (Import Sachbearbeiter)
PY - 2003
Y1 - 2003
N2 - Deformation by cyclic extrusion/compression in AlMg5 leads to the same stages of work hardening as unidirectional deformation. The analogy is confirmed by studies of the microstructure, by analysis of long range internal stresses and by evaluation of dislocation densities. The strains leading to the various stages of work hardening are much higher than those in conventional deformation modes while the dislocation densities in the stages are about the same. The strain shift in cyclic extrusion/compression is attributed to the reversal of strain path. The resulting subgrain size is smaller than that resulting from conventional deformation modes which seems to be a consequence of the higher hydrostatic pressure of cyclic extrusion/compression. Π2003 Elsevier Science B.V. All rights reserved.
AB - Deformation by cyclic extrusion/compression in AlMg5 leads to the same stages of work hardening as unidirectional deformation. The analogy is confirmed by studies of the microstructure, by analysis of long range internal stresses and by evaluation of dislocation densities. The strains leading to the various stages of work hardening are much higher than those in conventional deformation modes while the dislocation densities in the stages are about the same. The strain shift in cyclic extrusion/compression is attributed to the reversal of strain path. The resulting subgrain size is smaller than that resulting from conventional deformation modes which seems to be a consequence of the higher hydrostatic pressure of cyclic extrusion/compression. Π2003 Elsevier Science B.V. All rights reserved.
U2 - 10.1016/S0921-5093(03)00046-7
DO - 10.1016/S0921-5093(03)00046-7
M3 - Article
SN - 0921-5093
VL - 355
SP - 180
EP - 185
JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
IS - 1-2
ER -