Local Textures in Deformed and Recrystallized Aluminium Crystal
Open Access
- 1 January 1993
- journal article
- research article
- Published by Wiley in Texture, Stress, and Microstructure
- Vol. 20 (1-4) , 141-154
- https://doi.org/10.1155/tsm.20.141
Abstract
The recrystallization mechanisms in deformed aluminium single crystals have been investigated by SEM microdiffraction techniques (ECP and EBSP). Aluminium crystals of (001)(uv0) and (001)[01] orientations were deformed in plane strain compression to a true strain of ~1 to develop different deformation microstructures. Transition bands separating deformation bands were formed by orientation splitting in the (001)(uv0) crystals, but were not observed in the (001)[01] crystal.During annealing at 250°C and 400°C, recrystallization nuclei are developed in both the deformed matrix and along transition bands. Matrix nucleation appears to occur by a subgrain coalescence mechanism according to which the new grains are misoriented 15‐30° from the average as‐deformed material. Transition band nucleation gives an orientation spread 20‐30° around the original, undeformed crystal orientation. A well‐defined cube recrystallization texture is obtained at 400°C after complete recrystallization of the initial cube crystal.Keywords
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