Quantitative study on slip/twinning activity and theoretical critical shear strength of Mg alloy with Y addition

Slip/twinning activity and theoretical critical shear strengths (τmax) during room-temperature tensile deformation of as-extruded pure Mg and Mg-1wt.%Y sheets were investigated quantitatively via electron back-scattered diffraction (EBSD), scanning electron microscope (SEM) and first-principles calculation. Slip trace analysis results indicated the relative frequency of the active slip modes transformed from basal slip (100%) for pure Mg, to...