Table 4 EIS parameters of investigated alloys in AS medium with different pH levels (The standard deviation of the obtained values was found to range between 0.75% and 5.25%).

From: Surface and in vitro corrosion properties of spark plasma sintered Ti–Zr–Nb–Ta–Ag high entropy alloy for dental implant applications

Samples/test

Rs (Ω⋅cm²)

Rct (kΩ⋅cm²)

CPEdl (µΩ⁻¹⋅cm⁻²⋅sn)

ndl

χ² × 10−5

SPS HEA

 pH-6.8

56.58

10805.083

0.085

0.96

1.586

 pH-4.9

48.58

1241.654

0.254

0.90

3.589

 pH-3.0

52.38

216.000

1.589

0.87

2.568

Ti6Al4V

 pH-6.8

58.26

3179.083

0.485

0.94

5.684

 pH-4.9

55.21

169.534

1.894

0.91

2.548

 pH-3.0

51.24

19.481

10.258

0.87

6.981

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