Annealing of a magnesium alloy AZ31 after interrupted cold deformation

Structural development at severely high strain in AZ31 magnesium alloy processed by cold forging and subsequent annealing

“…1a and b, respectively. It is clearly seen that the Mg alloy is able to be stably deformed up to severe large strain of RDe = 5 during cold MDF, although it fractured in a brittle fashion at e % 0.15 during single pass compression [9,10]. The r L and r T in Fig.…”

“…As far as the authors know, however, there are few systematic reports available on the annealing behaviors of cold-deformed Mg alloys and especially on those after large strain deformation. The authors overcame the latter by using multi-directional forging (MDF) [5] and have studied systematically the annealing behavior of cold-deformed Mg alloy, and examined the effect of prior strain, pass strain of MDF and temperature on the annealing behavior for the Mg alloy [9,10].…”

“…The MDF with a pass strain of 0.1 was carried out at room temperature in a wide range of severe strains up to 5. The behaviors of recrystallization occurring after severe cold deformation were studied comparing with those appearing in low strain [9,10]. The effect of severe plastic deformation on grain refinement and texture changes as well as of the subsequent annealing on them is analyzed in detail, and the mechanisms operating during the processes are discussed.…”

Microstructural and textural evolution of AZ61 magnesium alloy sheet during bidirectional cyclic bending

“…3(d)). It is supposed that the orientation or strain gradients persisted after 8 passes are insufficient to catalyze DRX any more [2,5,30]. Fig.…”

“…Magnesium (Mg) and its alloys have high potential as structural materials, since Mg is the lightest of all structural alloys [1][2][3]. However, Mg alloys typically have poor plasticity at ambient temperature due to a lack of sufficient number of slip systems associated with hexagonal close-packed (hcp) crystal structure.…”