For high (angular) resolution electron backscatter diffraction (HR-EBSD), the selection of a reference diffraction pattern (EBSP0) significantly affects the precision of the calculated strain and rotation maps. This effect was demonstrated in plastically deformed body-centred cubic and face-centred cubic ductile metals (ferrite and austenite grains in duplex stainless steel) and brittle single-crystal silicon, which showed that the effect is not only limited to measurement magnitude but also spatial distribution. An empirical relationship was then identified between the cross-correlation parameter and angular error, which was used in an iterative algorithm to identify the optimal reference pattern that maximises the precision of HR-EBSD.
@article{arxiv.2206.10242,
title = {An iterative method for reference pattern selection in high resolution electron backscatter diffraction (HR-EBSD)},
author = {Abdalrhaman Koko and Vivian Tong and Angus J. Wilkinson and T. James Marrow},
journal= {arXiv preprint arXiv:2206.10242},
year = {2023}
}