Table 3 Mössbauer hyperfine parameters of the investigated CoCrFeNiNbx alloys (x = 0.25, 0.45, and 0.65) in the form of ingots and plates; IS – isomer shift, QS – quadrupole splitting, G – full line width at half maximum. Estimated errors are ± 0.01 mm/s for IS and G; for QS is ± 0.02 mm/s.

From: The effect of cooling rate and content of niobium on the structure, wear and corrosion resistance of CoCrFeNiNbx high entropy alloys

Sample

Form

IS

[mm/s]

QS

[mm/s]

G

[mm/s]

Interpretation

CoCrFeNiNb0.25

Ingot

−0.09

0.27

0.30

(Fe, Co, Cr)2Nb

−0.08

-

0.30

FCC-Fe(Cr, Ni)

Plate

−0.08

0.23

0.31

(Fe, Co, Cr)2Nb

−0.08

-

0.31

FCC-Fe(Cr, Ni)

CoCrFeNiNb0.45

Ingot

−0.12

0.19

0.38

(Fe, Co, Cr)2Nb

−0.06

-

0.38

FCC-Fe(Cr, Ni)

Plate

−0.08

0.35

0.29

(Fe, Co, Cr)2Nb

−0.06

-

0.29

FCC-Fe(Cr, Ni)

CoCrFeNiNb0.65

Ingot

−0.19

0.42

0.30

(Fe, Co, Cr)2Nb

−0.12

-

0.30

FCC-Fe(Cr, Ni)

0.20

0.36

0.30

Nb(Fe)

Plate

−0.17

0.41

0.32

(Fe, Co, Cr)2Nb

−0.12

-

0.32

FCC-Fe(Cr, Ni)

0.22

0.37

0.32

Nb(Fe)