Effects of Orientation on the Mechanical Response of As Received and Shock Deformed Aluminium Single Crystals

The response of single crystals to external mechanical stimuli whilst under simple and well controlled states of strain are invaluable to both gain a fundamental understanding deformation behaviour and provide data for computer models used in testing and design of more realistic geometries. In this work, we report of a series of single crystal aluminium samples, tested under strain-rates in the range 10^-3 to 10³ s^-1, and temperatures between -50 to 200 °C. Samples were tested in the three principal orientations (<100>, <110> and <111>), and microstructures taken from all samples deformed at 10^-3 s^-1 at 25 °C. In addition, samples in all three orientations were tested at 10^-3 s^-1 at 25 °C after shock loading to 9.8 GPa for 1 µs. As before, microstructural examination was performed on the prior shock loaded samples.