Heterogeneity in texture development in single pass equal channel angular extrusion
- Irene Jane
- Saiyi
- David J.
- Carl T.
- Mark A.
We investigate inhomogeneity in deformation of OFE Cu in a single pass of Equal Channel Angular Extrusion (ECAE). A finite element simulation of the rounded corner die used here shows that deformation occurs primarily over a broad region with an exception of low shear deformation in the round corner region. An analytical model for the deformation history induced by this two-part deformation zone is imported into a viscoplastic self-consistent (VPSC) polycrystalline model for texture prediction. Orientation Image Microscopy (OIM) measurements show that the texture evolution varies from top to the middle by a slight rotation and that the bottom region experiences little deformation but large rotations. Texture predictions agree reasonably well with these OIM measurements in features and intensity.
- Research Organization:
- Los Alamos National Laboratory
- Sponsoring Organization:
- DOE
- OSTI ID:
- 977457
- Report Number(s):
- LA-UR-04-0778; LA-UR-04-778
- Country of Publication:
- United States
- Language:
- English
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