Stress Corrosion Cracking and the Effects of Citrus X aurantiifolia on Mild Steel-A Green Approach

O. S.I. Fayomi, J. Akpoborie, O. Sanni, J. Ren, W. B. Wan Nik, J. A. Oyebanji, K. M. Oluwasegun, J. O. Ojediran, F. Zulkifli

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The inhibition performance of citrus x aurantiifolia extract (CXA) on the corrosion of mild steel in 1.5 M H2SO4, 2 M H2SO4, 3 M H2SO4, and 4 M H2SO4 solutions was evaluated by weight loss, potentiodynamic polarization techniques, and scanning electron spectroscopy equipped with energy-dispersive X-ray spectroscopy. CXA inhibited the mild steel corrosion in the sulphuric acid solutions with optimal inhibition results of 96.06% in 1.5 M H2SO4 and 86.57% in the 4 M H2SO4 from weight loss measurement. Weight loss, potentiodynamic polarization, and scanning electron microscopy tests confirm the inhibitive performance of this compound and the increase in inhibitor efficiency increases with inhibitor concentration. The polarization data showed that the inhibitor acts as a mixed-type inhibitor, and fits the Langmuir adsorption isotherm. The adsorption studies clarify the excellent adsorption of this compound on the mild steel surface. The inhibited steel in the acid solution displayed improved surface morphology due to the surface protection effect of CXA molecules. The citrus x aurantiifolia studied here easily mitigates the effect of stress corrosion cracking on mild steel in a sulphuric acid environment.

Original languageEnglish
Title of host publicationMaterials and Technologies for Sustainability - Selected peer-reviewed full text papers from the International Conference on Sustainable Engineering and Materials Development, ICSEMD 2021
EditorsAbiodun A. Abioye, Bukola J. Babalola, Olufemi E. Bamidele, Oluseyi O. Ajayi
PublisherTrans Tech Publications Ltd
Pages116-134
Number of pages19
ISBN (Print)9783035726466
DOIs
Publication statusPublished - 2022
EventInternational Conference on Sustainable Engineering and Materials Development, ICSEMD 2021 - Virtual, Online
Duration: 22 Sept 202124 Sept 2021

Publication series

NameKey Engineering Materials
Volume917 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Conference on Sustainable Engineering and Materials Development, ICSEMD 2021
CityVirtual, Online
Period22/09/2124/09/21

Keywords

  • Adsorption
  • Citrus X Aurantiifolia
  • Corrosion inhibitor
  • Mild steel
  • Stress corrosion
  • Sulphuric acid

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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