fig11

Figure 11. (A) TEM map showing the dislocations in the heat-treated Al-Zn-Mg-Cu-Nb alloy prepared by L-PBF after tensile testing; (B) KAM image of the tensile fracture surface of the sample; (C) Crack propagation path during three-point bending experiment; (D) The LUR curves under different heat treatment; (E) The third hysteresis loop from (D), utilized for calculating HDI stress and effective stress; (F) The statistics of HDI stress and the ratio of HDI stress to flow stress^[49]. (G) The curves of true stress-strain obtained from in situ micropillar compression tests conducted on both fine and coarse rosette regions of the L-PBFed Al₉₂Ti₂Fe₂Co₂Ni₂ alloy; (H) SEM micrographs of pillars under in situ compression; (I) Back stress measurements for micropillars; (J) A complete hysteresis loop for a pillar in fine rosette region at 14% strain^[72].