Abstract
Using the rotating-sphere-on-a-plate method, the relatively low energy orientations of grain boundaries in Cu, Ni and two Cu-Ni alloys lying, on average, parallel to the (100) surface of the plate were measured. Pole figures were plotted by using an X-ray texture goniometer. The data were analysed to determine whether special Σ-value boundaries existed (up to Σ35b), and crystallographic parameters such as Σ-value, boundary plane, rotation axis and angle, twist and/or tilt components were tabulated. The measured low energy orientations were compared with previous measurements from other studies and with predictions from geometric criteria.
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