Fig. 5: Hetero-deformation structure and hetero-deformation induced strengthening. | Communications Materials

Fig. 5: Hetero-deformation structure and hetero-deformation induced strengthening.

From: Tailoring hierarchical microstructures and nanoprecipitates in additive-manufactured Al-Zn-Mg-Cu-Nb alloys for simultaneously enhancing strength and ductility

Fig. 5

a Dislocations in the sample solutioned at 450°C/20 min and peak aging after tensile. b KAM mapping of the tensile fracture of the sample. c Crack propagation path of the sample during three-point bending testing. d Loading-Unloading-Reloading (LUR) curves. e The third hysteresis loop of (d), in which \({\sigma }_{{{{{{\rm{r}}}}}}}\) and \({\sigma }_{{{{{{\rm{u}}}}}}}\) were defined using 5% slope reduction of Young’s modulus. f HDI stress and the ratio of HDI stress to flow stress derived from the LUR hysteresis loops.

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