F. Heidelbach et al., ORIENTATION AND MISORIENTATION CHARACTERISTICS OF ANNEALED, ROLLED AND RECRYSTALLIZED COPPER, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 215(1-2), 1996, pp. 39-49
The texture and microstructure of annealed, rolled and recrystallized
copper (99.99%) were investigated using conventional X-ray diffraction
and single-crystal electron backscattering diffraction (EBSP) in a sc
anning electron microscope. From the EBSP data, misorientation distrib
ution functions for next neighbor orientation relationships were deriv
ed, which show that the undeformed (annealed) starting material and th
e recrystallised sample have primary and secondary twin correlations,
whereas in the deformed sample no preferred misorientations are observ
ed. The microtexture of a single grain with twin lamellae in the defor
med sample was analysed in detail using automated analysis of electron
backscattering diffraction patterns. The twin relationship is transfo
rmed continuously into a high angle grain boundary during deformation.
Orientation gradients within one grain increase steadily up to 20 deg
rees.