On the statistical correlation between twin deformation and grain size of magnesium alloy under combined tension-torsion cyclic deformation

To study the relationship between the twinning deformation and grain size of a magnesium alloy under combined tension-torsion cyclic (CTTC) loading, CTTC loading experiments with different paths and statistical analysis of the microstructure (grains and twins) were carried out. The test results show that the axial and tangential stress-strain cyclic curves present different symmetrical or asymmetrical characteristics due to the activation of the...