fig5

Figure 5. EBSD of Fe₄₀Mn₂₀Cr₂₀Ni₂₀ HEA annealed at 700 and 900 °C for 2 h after tensile fracture at cryogenic temperature: (a₁ and b₁) phase maps; (a₂ and b₂) IPF diagrams; (a₃ and b₃) grain boundary diagrams, where the black solid lines represent the large-angle grain boundaries and the red solid lines denote the twin boundaries; (a₄ and b₄) KAM maps. EBSD: Electron backscattering diffraction; HEA: high-entropy alloy.