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Table 3 Parameters of the components of the equivalent circuit R(Q(R(QR))) for the steel sample in the experimental phases 1, 2, 3, 4, and 5

From: Laboratory tests simulating corrosion in geothermal power plants: influence of service conditions

Phase

Rs (Ω·cm2)

Error (%)

Cfilm (F)

Error (%)

nfilm

Error (%)

Rfilm (Ω·cm2)

Error (%)

Cdl (F)

Error (%)

ndl

Error (%)

Rct (Ω·cm2)

Error (%)

χ2

1

38

1.0

4.2E−08

30.5

0.74

6.8

30

17.9

1.1E−06

13.5

0.76

2.6

20,482

10.4

7.4E−05

2

76

1.0

1.5E−08

8.3

0.64

2.8

75

3.0

2.7E−06

1.2

0.76

1.2

473

2.0

6.9E−05

3

41

0.5

6.3E−08

7.2

0.59

2.3

37

4.3

2.9E−06

2.9

0.79

1.1

11,506

21.1

2.1E−05

4

41

0.5

6.3E−08

8.5

0.61

2.5

36

5.1

2.8E−06

3.5

0.79

1.2

15,169

25.4

2.6E−05

5

40

0.6

6.9E−08

10.2

0.60

3.1

39

6.9

3.2E−06

4.8

0.76

1.6

12,331

26.1

3.0E−05