Page 124 - Read Online

Page 4 of 19 Chen et al. J Mater Inf 2023;3:10 https://dx.doi.org/10.20517/jmi.2023.06

Table 2. EHEA compositions identified via Equation (1) compared with the experimental verifications
Alloy system x C (calculated) C (experimental) Ref.
i eutectic eutectic
Nb-Co-Cr-Fe-Ni Nb Co 0.25 Nb CoCrFeNi Nb CoCrFeNi [57]
13.9 86.1 0.6 0.45
Nb Cr 0.25
12 88
Nb Fe 0.25
10.6 89.4
Nb Ni 0.25
15.5 84.5
Ta-Co-Cr-Fe-Ni Ta Co 0.25 Ta CoCrFeNi Ta CoCrFeNi [57]
8 92 0.47 0.4
Ta Cr 0.25
13 87
Ta Fe 0.25
7.5 92.5
Ta Ni 0.25
13.7 86.3
Zr-Co-Cr-Fe-Ni Zr Co 0.25 Zr CoCrFeNi Zr CoCrFeNi [57]
9.5 90.5 0.51 0.55
Zr Cr 0.25
17.2 82.8
Zr Fe 0.25
9.8 90.2
Zr Ni 0.25
8.8 91.2
Hf-Co-Cr-Fe-Ni Hf Co 0.25 Hf CoCrFeNi Hf CoCrFeNi [57]
11 89 0.49 0.4
Hf Cr 0.25
13 87
Hf Fe 0.25
7.9 92.1
Hf Ni 0.25
12.5 87.5
Nb-Co-Fe-Ni Nb Co 0.29 Nb Co Fe Ni Nb Co Fe Ni [60]
13.9 86.1 0.62 1.22 1.98 0.62 1.22 1.98
Nb Fe 0.46
10.6 89.4
Nb Ni 0.25
15.5 84.5
Nb-Co-Fe-Ni Nb Co 0.29 Nb Co Fe Ni Nb Co Fe Ni [60]
13.9 86.1 1.30 1.74 2.82 0.80 1.74 2.82
Nb Fe 0.46
10.6 89.4
Nb Ni 0.25
40.5 59.5
Zr-Co-Fe-Ni Zr Co 0.29 Zr Co Fe Ni Zr Co Fe Ni [60]
9.5 90.5 0.43 1.19 1.94 0.53 1.19 1.94
Zr Fe 0.47
9.8 90.2
Zr Ni 0.24
8.8 91.2
Hf-Co-Fe-Ni Hf Co 0.28 Hf Co Fe Ni Hf Co Fe Ni [60]
11 89 0.47 1.22 2.11 0.47 1.22 2.11
Hf Fe 0.48
7.9 92.1
Hf Ni 0.24
12.5 87.5
Nb-Co-Fe-Ni Nb Co 0.33 Nb CoFeNi Nb CoFeNi [84]
13.9 86.1 0.49 0.5
Nb Fe 0.33
10.6 89.4
Nb Ni 0.34
15.5 84.5
Nb-Co-Cr-Fe-Ni Nb Co 0.25 Nb CoCrFeNi Nb CoCrFeNi [85,86]
13.9 86.1 0.6 0.5
Nb Cr 0.25
12 88
Nb Fe 0.25
10.6 89.4
Nb Ni 0.25
15.5 84.5
Al O -Y O -ZrO (Al O ) (Y O ) 0.35 (Al O ) (Y O ) (ZrO ) (Al O ) (Y O ) (ZrO ) [87]
2 3 2 3 2 2 3 43 2 3 57 2 3 44 2 3 16 2 19 2 3 65 2 3 16 2 19
(Al O ) (ZrO ) 0.65
2 3 63 2 37
Al O -Gd O -ZrO (Al O ) (Gd O ) 0.57 (Al O ) (Gd O ) (ZrO ) (Al O ) (Gd O ) (ZrO ) [88]
2 3 2 3 2 2 3 77 2 3 23 2 3 102 2 3 19 2 23 2 3 58 2 3 19 2 23
(Al O ) (ZrO ) 0.43
2 3 63 2 37
“super element” and to substitute them for a normal element in a binary eutectic. In doing so, the candidate
composition C may be expressed as:
eutectic