HR-EBSD Measurements near Twins in Zicaloy-2

<p>HR-EBSD measurements made on a Zircaloy-2 sample deformed to 2.7% in tension to generate multiple deformation twins.&nbsp;<br /> HR-EBSD measurements were made using A Bruker HReFlash detector mounted on a Zeiss Merlin SEM. Sample preparation used Ar ion beam milling on a Gatan PECS II system as a final step.&nbsp;<br /> The strain, stress and dislocation density variations available here were then calculated using in-house Matlab code (XEBSD). &nbsp;The work and further analysis of the results is described in</p> <p><em>Assessment of residual stress fields at deformation twin tips and the surrounding environments</em>, Abdolvand &amp; Wilkinson, Acta Materialia (2016)<br /> dx.doi.org/10.1016/j.actamat.2015.11.036</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>The analysis methods implement in XEBSD are described in the following publications:</p> <p>High resolution electron backscatter diffraction measurements of elastic strain variations in the presence of larger lattice rotations&nbsp;<br /> TB Britton and AJ Wilkinson&nbsp;<br /> Ultramicroscopy, (2012), vol. 114, 82-95&nbsp;<br /> doi:10.1016/j.ultramic.2012.01.004</p> <p>Measurement of residual elastic strain and lattice rotations with high resolution electron backscatter diffraction&nbsp;<br /> TB Britton and AJ Wilkinson&nbsp;<br /> Ultramicroscopy, (2011) vol. 111, 1395-1404&nbsp;<br /> doi:10.1016/j.ultramic.2011.05.007</p> <p>Determination of elastic strain fields and geometrically necessary dislocation distributions near nanoindents using electron back scatter diffraction&nbsp;<br /> AJ Wilkinson and D Randman&nbsp;<br /> Philosophical Magazine, (2010), vol. 90, 1159-1177&nbsp;<br /> doi:10.1080/14786430903304145</p> <p>Crystal Plasticity Analysis of Micro-Deformation, Lattice Rotation and Geometrically Necessary Dislocation Density&nbsp;<br /> FPE Dunne, R Kiwanuka, AJ Wilkinson&nbsp;<br /> Proc. Royal Society A, (2012), vol. 468, 2509-2531&nbsp;<br /> doi:10.1098/rspa.2012.0050</p>