Simulation of deformation twins and deformation texture in an AZ31 Mg alloy under uniaxial compression

Enhancing Fracture Toughness of Magnesium Alloy by Formation of Low‐Angle Grain Boundary Structure

“…The formation of deformation twins is influenced by the texture in magnesium alloys. [27,28] When the basal plane is tilted to an ideal angle of 458 for the activation of dislocation slips, such as in the ECAE-ed alloy, the area fraction of deformation twins tends to decrease. [29] However, since the present alloys have a similar texture as that of the conventional rolled or extruded alloys (Fig.…”

Origin of the Anomalous {10\\bar12} Twinning during Tensile Deformation of Mg Alloy Sheet

“…Because of the small CRSS, the f10 " 1 12g twins are formed in the initial loading stage and influences yielding behavior. [2][3][4][5][6][7][8][9][10] In the second, the f10 " 1 12g twinning induces tensile strain parallel to the c axis and compressive strain perpendicular to the c axis. Therefore, the f10 " 1 12g twins are formed abundantly when tensile (or compressive) stress is applied in the parallel (or perpendicular) direction to the c axis and can contribute to substantial strain softening.…”

An internal variable approach of orientation dependent deformation mechanism of rolled AZ31 magnesium alloy

“…An abrupt change in orientation caused by twinning might give rise to activation of other slip systems. The relative activity of basal and non-basal slips, which vary with the increase in true strain, has been reported previously [19]. All of the basal and non-basal slips, as well as twinning, appear to contribute to the total elongation in the 45° and 90° specimens at room temperature, unlike the case of the 0° specimen.…”

“…A notable point that can be observed here is that a very large increment of elongation can be achieved by increasing the test temperatures for all the orientations. Since texture evolution was not observed during the tensile test of an RD specimen in the previous study [19], elongations of an RD specimen seemed therefore mostly to be generated by non-basal slips. The elongations of the 0° specimen were, therefore, much smaller than those of the other two orientations, regardless of the test temperatures; these smaller elongations were due to the higher critical resolved shear stress (CRSS) of non-basal slip systems compared to those of basal slip and twin deformation systems [20].…”