TITLE:
Effect of an Organic Inhibitor on the Electrical Properties of High Carbon Steel in Simulated Acid Environment
AUTHORS:
Osarolube Eziaku
KEYWORDS:
Electrical Properties, Corrosion, High Carbon Steel, 1-Phenyl-3-Methyl Pyrazol-5-One
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.2 No.7,
July
7,
2014
ABSTRACT: The effect of
1-Phenyl-3-Methyl Pyrazol-5-one (HPMP) on the electrical properties of high
carbon steel in Hydrochloric acid (HCI), Trioxonitrate (v) acid (HNO3)
and Perchloric acid (HCIO4) was studied by weight loss method. The
acidic medium caused a complete degradation of the electrical properties of the
coated and uncoated high carbon steel. However, the attack was more on the uncoated
coupons, which showed that HPHP is an effective corrosion inhibitor. HNO3 had the most severe effect on the metal. The coupons coated with HPMP generally
had higher values of resistance (0.0155 Ω) and conductivity (6.20 mho/m) in HCI
environment than the uncoated coupons (0.0043 Ω) and (1.72 mho/m). Similar
results were obtained for HNO3 and HCIO4 environments. These values are lower than the values obtained
for as-received coupons: -0.0466 and 8.64 mho/m respectively.