fig16

Figure 16. TEM micrographs showing the different characteristics of (A-C) CoCrNi, (D-F) CoCrNiSi_0.2 and (G-I) CoCrNiSi_0.3 MEAs at the fracture strain. (A), (B), (D) and (G) Bright-field images representing the main micromorphological characteristics and dislocation cells. (E) Bright-field images of multiple twinning in the alloys. (H) Corresponding higher magnification image representing multiple twinning in the yellow rectangular area of (G). (C), (F) and (I) Bright-field images of twin bundles with their corresponding selected area electron diffraction patterns inserted^[60].