A model Al-Li-Zr alloy subjected to extrusion and hot rolling was examined.
The spatial distribution of the grain orientations was determined by analy
sing the local texture using the methods of electron channeling patterns an
d electron back scattering diffraction. The 'grain by grain' examinations h
ave shown that the texture within many grains is inhomogeneous. Almost all
the grains are oriented along the beta-fibre. The grains are rotated along
this fibre in a continuous mode. In hot-rolled sheets, the Goss orientation
was observed to pass gradually into brass (Bs). Another observation was th
e presence of paired Bs(+) and Bs(-) grains, symmetrically equivalent. The
grains are most often rotated about: (i) the (111) poles closest to the nor
mal direction; (ii) the rolling direction; or (iii) the normal direction. I
n the first case the grain rotation is S<->copper (Cu), in the second Bs<->
S. Among the rotations about the normal direction, we can distinguish those
from the Goss orientation to the Bs orientation and those from the 'rotati
on cube' orientation to orientations intermediate between S and Bs. (C) 199
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