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In situ analysis of the influence of twinning on the strain hardening rate and fracture mechanism in AZ31B magnesium alloy

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Academic year: 2021

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Fig. 1 Samples after four passes of I-ECAP using route B C (upper) followed by side upsetting (lower); ED extrusion direction, ND normal direction, TD transverse direction
Figure 4a and b show microstructures of the extruded rod at strains 0.02 and 0.03, respectively
Fig. 7 Fracture of the extruded rod and I-ECAPed bar subjected to tension
Fig. 9 Evolution of the volume fraction of twinned grains with strain in the extruded sample (coarse-grained) and in the I-ECAPed sample (fine-grained)
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