fig8

Figure 8. Oxygen-assisted failure mechanism in various HEA systems at intermediate-temperature regimes. Tensile curves of (A) Ni-20Co-30Fe-6Al-4Ti-0.1B (at.%) HEA at 600 °C in air and vacuum conditions (Reproduced with permission^[73]. Copyright 2022, Elsevier) and (B) Ni-30Co-13Fe-15Cr-6Al-6Ti-0.1B (at.%) HEA at 775 °C with different surface treatments and testing environments (Reproduced with permission^[39]. Copyright 2022, Elsevier). HEA: High entropy alloy.