Evaluating the effect of yttrium as a solute strengthener in magnesium using in situ neutron diffraction

In situ neutron diffraction of two binary Mg alloys, Mg–0.5 wt.% Y and Mg–2.2 wt.% Y have been carried out in compression. The experimental data has been modelled using the elastoplastic self-consistent methodology in order to determine the critical resolved shear stress for basal slip, second-order 〈c + a〉 pyramidal slip and {101¯2} twinning. It was found that the addition of Y strengthens all three of the deformation modes examined. However,...