560
O. I. Kushnerov et al.
Table 1 Electronic, thermodynamic and the atomic-size parameters of the
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA
mix , J/(mol · K)
mix , kJ/mol
VEC
δ
γ
13.653
−26.295
0.987
7.439
14.41
1.545
Fig. 1 XRD patterns of as-cast ingot and splat-quenched nanostructured film of
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA
γ =
ω S
ω L
.
(5)
As pointed out in [15], the value of γ = 1.175 is a boundary between the metallic
glasses or alloys with intermetallic compounds and the simple solid solution alloys.
Using the data from [16–18], we calculated mix , mix , δ, VEC, Ω, and γ of the
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA (Table 1).
According to [19], HE-MGs may form when mix , mix and δ simultaneously
satisfy the following conditions: 7 ≤ mix ≤ 16 J/(mol · K), −49 ≤ mix ≤ −
5.5 kJ/mol and δ ≥ 9. Another condition indicating the possibility of forming metallic
glass or intermetallic compounds is the value of the parameter ≤ 1.1. As we can
see from the Table 1, the Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 alloy is fully satisfied with
all of the mentioned above conditions and mix , mix , δ, γ are the appropriate
parameters for forecasting the phase composition of HEAs. As pointed in [10] the
O. I. Kushnerov et al.
Table 1 Electronic, thermodynamic and the atomic-size parameters of the
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA
mix , J/(mol · K)
mix , kJ/mol
VEC
δ
γ
13.653
−26.295
0.987
7.439
14.41
1.545
Fig. 1 XRD patterns of as-cast ingot and splat-quenched nanostructured film of
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA
γ =
ω S
ω L
.
(5)
As pointed out in [15], the value of γ = 1.175 is a boundary between the metallic
glasses or alloys with intermetallic compounds and the simple solid solution alloys.
Using the data from [16–18], we calculated mix , mix , δ, VEC, Ω, and γ of the
Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 HEA (Table 1).
According to [19], HE-MGs may form when mix , mix and δ simultaneously
satisfy the following conditions: 7 ≤ mix ≤ 16 J/(mol · K), −49 ≤ mix ≤ −
5.5 kJ/mol and δ ≥ 9. Another condition indicating the possibility of forming metallic
glass or intermetallic compounds is the value of the parameter ≤ 1.1. As we can
see from the Table 1, the Fe 25 B 17.5 Co 21.35 Nb 3.65 Ni 25 Si 7.5 alloy is fully satisfied with
all of the mentioned above conditions and mix , mix , δ, γ are the appropriate
parameters for forecasting the phase composition of HEAs. As pointed in [10] the