Table 1.

Average grain sizes and fractions of high angle grain boundaries for particular ECAP routes and planes, as estimated from EBSD measurements.

Route/Plane	TD		ND		ED
ECAP Route	Grain Size (µm)	Fraction of HAGBs	Grain Size (µm)	Fraction of HAGBs	Grain Size (µm)	Fraction of HAGBs
A	3.57	85.5%	4.20	89.7%	3.98	91.0%
BC	3.43	92.1%	3.48	93.8%	3.37	90.2%
C	3.97	86.9%	4.33	89.5%	4.81	89.6%