Journal article
Microstructure of ECAE-processed copper after long-term room temperature storage
Metal Structures in Four Dimensions, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
The microstructure in two copper samples processed by equal channel angular extrusion (ECAE) using either 90 deg rotations between passes (route Bc) or without rotations (route A) has been examined following storage at room temperature for a period of 8 years. In both samples the deformation microstructure was significantly heterogeneous, as indicated by large differences between the extent of microstructural refinement from place to place along the center line of the extrusion.
The route Bc sample, however, showed a greater degree of heterogeneity, though with an overall lower degree of refinement. A number of recrystallized grains were seen in both samples, with a greater recrystallized fraction observed for the route Bc sample. The effect of the processing route on the microstructure and consequences of the observed heterogeneity for microstructural characterization of ECAE-processed material are discussed.
Language: | English |
---|---|
Publisher: | Springer US |
Year: | 2008 |
Pages: | 2923-2930 |
ISSN: | 15431940 and 10735623 |
Types: | Journal article |
DOI: | 10.1007/s11661-008-9658-3 |
ORCIDs: | Mishin, Oleg |