Table 6 PDP parameters for X-65 immersed in 1.0 M HCl without and with various doses of PAS inhibitor.

From: Experimental and theoretical assessments of an innovative star-shaped polyamine surfactant designed for X-65 steel corrosion mitigation in acidic environment

Inh

Conc.,

(µM)

 − Ecorr

(mV)

icorr

(mAcm−2)

βa

(mVdec-1)

 − βc

(mVdec-1)

θ

\({\varvec{\eta}}{\%}\)

Blank

–

509.2

0.7381

107.2

149.5

–

–

PAS

5

502.3

0.2813

98.7

161.9

0.6188

61.88

 

10

513.1

0.2274

108.1

143.7

0.6919

69.19

 

50

521.9

0.1479

114.6

179.5

0.7996

79.96

 

100

498.7

0.1197

138.5

163.4

0.8378

83.78

 

500

506.8

0.0723

96.9

171.4

0.9021

90.21

 

1000

517.3

0.0396

108.6

181.2

0.9463

94.63

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