fig4

Figure 4. Hydrogen-induced phase transformations and schematic overview of metastable 45Fe-35Mn-10Co-10Cr HEA. (A-C) Electron backscatter diffraction (EBSD) phase maps of no-hydrogen charging after 55 h of hydrogen charging and 106 h of hydrogen charging. (D) Image quality map of a hydrogen-charged sample for 106 h. (E) Enlarged region with hydrogen-induced twins is highlighted in red. (F) Point-to-point misorientation across a hydrogen-induced twin^[28].