fig10

Figure 10. Heterostructures with nano precipitates created by LAM and LST techniques: (A) SEM image showing the orientation arranged nanostructure complex parallel to the BD of SLM-Fe₂₈Co₂₉Ni_27.5Al_8.5Ti_6.5; (B) SEM image showing the multiple nanoprecipitates manipulation; (C) TEM image showing the L1₂, L2₁, and face-centered cubic matrix phases; (D) Schematic illustration of the orientation arranged nanostructure complex composed of multiple nanoprecipitates manipulation and in-situ dislocation network^[99]. (E) BF TEM images of the LSR & aged AlCoCrFeNi_2.1 MPEAs; Dark field (DF) TEM images of the face-centered cubic phase (E1) and B2 phase (E2) from the superlattice spot from their selected area diffraction patters (SADPs) shown in the inset. (F) Schematic diagrams of the surface-strengthening process^[100].