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Page 8 of 17 Xiao et al. Microstructures 2023;3:2023006 https://dx.doi.org/10.20517/microstructures.2022.26
Figure 6. Enhanced HE resistance of FeCoCrNiMn HEA system via regulation of microstructural features. (A and B) Hydrogen-induced
[63]
gradient NT structures (electrochemical hydrogen charging and tension) (Reproduced with permission . Copyright 2018, Elsevier)
(Reproduced with permission [66] . Copyright 2022, Elsevier). (C and D) Fine grain structures (gas hydrogen charging and tension)
(Reproduced with permission [64] . Copyright 2019, Elsevier). (E and F) Modified cellular structures (electrochemical hydrogen charging
and tension) (Reproduced with permission [67] . Copyright 2021, Elsevier). HE: Hydrogen embrittlement; HEA: high entropy alloy.
ITE MECHANISMS AND STRATEGIES FOR HEA SYSTEMS
In this section, the significant progress in the design of ITE-resistant HEAs and the associated underlying
dominant mechanisms are summarized. Among recently developed HEA systems, it has been extensively
