Mechanical Properties and Stacking Fault Energies of NiFeCrCoMn High-Entropy Alloy

By A. Zaddach, C. Niu, C. Koch, D. Irving. 2013

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Theory of strengthening in fcc high entropy alloys (2016, methodology): “For typical HEA elastic moduli and with estimates of stacking fault energies in HEAs [35] being below 100mJ/m(2), and typically much smaller, we conclude that the stacking fault energy value is not important for the low-temperature strength in HEA materials.”
Strong grain-size effect on deformation twinning of an Al0.1CoCrFeNi high-entropy alloy (2017, background): “As twinning depends strongly on the stacking fault energy (SFE), temperature, and strain rate [31], the twin-HEAs were regarded to have a low SFE range [32,33].”
Mechanical properties of high-entropy alloys with emphasis on face-centered cubic alloys (2019, background): “Cr26Mn20Fe20Co20Ni14 HEAs, as compared with other low SFE alloys [118].”
Influence of deformation and annealing twinning on the microstructure and texture evolution of face-centered cubic high-entropy alloys (2017, positive): “This alloy possesses a face-centered cubic (fcc) crystal structure, it has a moderately low stacking-fault-energy (SFE) and exhibits characteristics similar to low SFE metals, such as brass and high-manganese steel [13, 25].”
Microstructure evolution and critical stress for twinning in the CrMnFeCoNi high-entropy alloy (2016, background): “[4] attributed twinning to the low stacking fault energy of the CrMnFeCoNi HEA, which has been reported to be about 20e25 mJ/m2 [7,19].”