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OAT EXTRACT AS A NATURAL CORROSION INHIBITOR FOR MILD STEEL IN 3% NaCl SOLUTION

Author

Listed:
  • A. ZAABAR

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria†Département de Génie des Procédés, Pôle Technologique, Université de Bouira, 10000 Bouira, Algeria)

  • R. AITOUT

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • D. AMOURA

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • R. MAIZIA

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • D. AIT ABDESSELAM

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • L. MAKHLOUFI

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

  • B. SAIDANI

    (Laboratoire d’Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria)

Abstract

In this work, we have tested a new inhibitor formulation that is effective, economically efficient and in accordance with environmental legislation. The inhibitor tested is the crude extract of the oat plant (denoted as OE) obtained by the reflux method in the water. This extract is then used as a corrosion inhibitor of mild steel in 3% NaCl. This study was carried out by using electrochemical polarizations, Electrochemical Impedance Spectroscopy and gravimetric techniques. The results obtained showed that this extract satisfactorily inhibits the dissolution rate of mild steel. The inhibition efficiency increases with inhibitor concentration and reaches 72% at 5g⋅L−1 of oat extract. Polarization data indicate that the extract acted as mixed type. The adsorption of the inhibitor on the mild steel surface in 3% NaCl follows the Langmuir adsorption isotherm. SEM analysis of the electrode surface condition confirms the results obtained.

Suggested Citation

  • A. Zaabar & R. Aitout & D. Amoura & R. Maizia & D. Ait Abdesselam & L. Makhloufi & B. Saidani, 2021. "OAT EXTRACT AS A NATURAL CORROSION INHIBITOR FOR MILD STEEL IN 3% NaCl SOLUTION," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(10), pages 1-13, October.
    • Handle: RePEc:wsi:srlxxx:v:28:y:2021:i:10:n:s0218625x21500840
    DOI: 10.1142/S0218625X21500840
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