Table 2 The calculated values of parameters (ΔHmix, ΔSmix, Δ, Ω, VEC) for the investigated alloys.

From: Microstructure and phase evolution in increasing the amount of mo and Ti of non-equiatomic CoFeNi-based medium entropy alloys for organic wastewater treatment

Parameter

Designed value

Mo2Ti3

Mo4Ti6

Mo6Ti9

Mo8Ti12

Mo10Ti15

Mo12Ti18

Mixing enthalpy* (kJ/mol)

−16≤ ∆Hmix≤5

−4.6

−7.6

−10.2

−12.4

−14.4

−16.0

Mixing entropy

1.32≤∆Smix≤2.35 R

1.28

1.38

1.46

1.51

1.55

1.58

Atomic size mismatch (δ)

0 ≤ δ ≤ 8.5

3.2

4.37

5.19

5.77

6.22

6.56

Ω

Ω ≥ 1.1

4.14

2.77

2.19

1.90

1.71

1.59

Valence electron concentration (VEC)

6.87 BCC ≤ VEC ≤ 8 FCC

8.67

8.58

8.37

8.16

7.95

7.74

  1. * The binary mixing enthalpies in ternary amorphous systems used in the calculation can be found in Ref23 IM -intermetallic, SS- solid solution.
Back to article page