Effect of Inoculant on the Degradation Behaviour of Multi Layered Mild Steel/Al-Cr Plate in Psidium guajava Leaf Extract

The effect of an inoculant, [triethylamine (TEA)] on the corrosion behavior of multilayered mild steel/Al-Cr plates in guava leaf extract was investigated in 0.5M HCl solution using gravimetric based mass-loss test and potentiodynamic polarization techniques. The mild steel plates were sectioned int...

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Bibliographic Details
Published inArid Zone Journal of Engineering Technology and Environment Vol. 14; no. 4; pp. 533 - 539
Main Authors M. A. Bawa, M. Abdulwahab, O. B. Umaru, S. M. Adams, L. M. Sani, N. Agidani
Format Journal Article
LanguageEnglish
Published University of Maiduguri 01.12.2018
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Summary:The effect of an inoculant, [triethylamine (TEA)] on the corrosion behavior of multilayered mild steel/Al-Cr plates in guava leaf extract was investigated in 0.5M HCl solution using gravimetric based mass-loss test and potentiodynamic polarization techniques. The mild steel plates were sectioned into coupons of 4 and then pickled, after which they were coated at 750 with an Al-Cr alloy. The gravimetric-based mass loss test was carried out at room temperature for different concentrations and time intervals of 2.0, 4.0, 6.0, 8.0%v/v and 24, 48, 72, 96 hours respectively. The result showed that triethylamine (TEA) decreased the corrosion rate at the various concentrations indicating protection efficiency up to 59.02% in the gravimetric-based-mass-loss technique. Equally the potentiodynamic polarization technique indicates higher corrosion resistance of 98.49%. The two methods used for the evaluation of the degradation of multilayered mild steel/Al-Cr plates in 0.5M HCl/guava leaf extract medium were in agreement.
ISSN:2545-5818
2545-5818