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Comparison of specific hardness of HEAs with other alloys.
| Alloys | Hardness (HV) | Theoretical Density (g/cm3) | Specific Hardness (HV/g/cm3) |
|---|---|---|---|
| AlCrMoTi (#4) | 606 | 6.01 | 100.83 |
| AlCrMoTiV (#7) | 556 | 6.00 | 92.67 |
| AlCoCrFeNi [26] | 520 | 6.70 | 77.61 |
| AlCoCrCuFeNi [27] | 400 | 7.02 | 56.98 |
| Al0.5CoCrCuFeNiV [28] | 640 | 7.27 | 88.03 |
| Ti-6Al-4V [29] | 346 | 4.43 | 78.10 |
| Ti-6242 [30] | 339 | 4.54 | 74.67 |
| Inconel 718 [31] | 355 | 8.18 | 43.40 |
