Activation Stress for Slip Systems of Pure Magnesium Single Crystals in Pure Shear Test

With a hexagonal close packed structure, magnesium has many slip systems. Pure shear tests were carried out to evaluate their critical resolved shear stresses (CRSS). As a result, the CRSS for the basal slip was 0.7 MPa, and it was close to conventional values. When the shear stress of 40 MPa was applied in parallel to the prismatic plane, the {1012} twin deformation occurred only, and the prismatic slip deformation did not occur.