Effect of norcholine fluid derivative on the resilience of mild steel to electrochemical degradation in weak HCl media
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The resilience of mild steel to electrochemical degeneration in weak electrolyte
corrosion (0.5 M HCl) was assessed at discrete concentrations of Norcholine derivatives by
potentiodynamic polarization and open circuit potential analysis. Degradation rate of the steel
substantially declined with augmentation of Norcholine concentration from9.49 mm/y in control
HCl (no Norcholine) to 0.27 mm/y at highest Norcholine value of 15%. The degradation rate at
this inhibitor concentration correlates of 97.1% protection performance. Norcholine
demonstrated cathodic inhibition effect from observation of the negative deviation in corrosion
potential. Norcholine was also observed to indicate substantial passive reaction mechanism on
the anodic polarization regions of the polarization graphs. This translates to evolution of nonporous
layer on the steel exterior. Open circuit potential graphs indicate substantial variation
between the inhibited and acid degraded graphs of the steel. Mathematical computations through
analysis of variance demonstrates Norcholine concentration and potential tracking time are
statistically important variation sources influencing the protection performance of Norcholine at
values of 68.03% and 26.4%.
Keywords
TJ Mechanical engineering and machinery, TP Chemical technology