Table 4 Various corrosion parameter values obtained by numerical curve-fitting to potentiodynamic polarization data of the tested samples.

From: Corrosion-induced hydrogen evolution, absorption, and cracking behaviors of ultra-high-strength galvanized and galvannealed steel sheets

 

\(i_{0\_{{{\mathrm{H}}}}_2{{{\mathrm{O}}}}}\) (A cm−2)

\(\beta _{{{{\mathrm{a}}}}\_{{{\mathrm{steel}}}}/{{{\mathrm{coating}}}}}\) (V dec−1)

\(\beta _{{{{\mathrm{c}}}}\_{{{\mathrm{H}}}}_2{{{\mathrm{O}}}}}\) (V dec−1)

\(i_{\mathrm{lin}\_{{{\mathrm{O}}}}_{2}}\) (A cm−2)

icorr (A cm−2)

Ecorr (VSCE)

CR_N

1.0 × 10−7

0.06

0.15

1.85 × 10−5

2.13 × 10−5

−0.710

GI

8.8 × 10−8

0.05

0.22

1.00 × 10−5

1.29 × 10−5

−1.116

GA

9.5 × 10−8

0.15

0.20

1.20 × 10−5

1.82 × 10−5

−1.084

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