Electrochemical characteristic of cathodically protected mild steel in 3.5% Nacl and 1 M H 2 SO 4

M. N.A. Tladi, R. Maloma, B. A. Obadele, P. A. Olubambi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The study focused on the electrochemical behaviour of mild steel in 3.5% NaCl and 1 M H 2 SO 4 solutions using impressed current from external source. Open circuit potential, potentiodynamic polarization and chronoamperometry test methods were used to assess the corrosion performance of the mild steel in the solutions at room temperature (±25°C) using an AUTOLAB Potentiostat (PGSTAT30. Results show that open circuit potential (OCP) revealed that mild steel specimen in 3.5% NaCl solution has higher tendency to corrode compared to when it is immersed in 1 M H 2 SO 4 . However, the potentiodynamic polarization measurement shows that lower current density was produced for mild steel specimen immersed in 3.5% NaCl solution compared to 1 M H 2 SO 4 solution. The chronoamperometry measurement for 3.5% NaCl sample illustrated that when a nobler potential was applied, it resulted into lower corrosion current while it is the opposite for samples immersed in 1 M H 2 SO 4 .

Original languageEnglish
Title of host publication2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages91-94
Number of pages4
ISBN (Electronic)9781538642979
DOIs
Publication statusPublished - Apr 17 2018
Externally publishedYes
Event9th IEEE International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2018 - Cape Town, South Africa
Duration: Feb 10 2018Feb 13 2018

Publication series

Name2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2018
Volume2018-January

Conference

Conference9th IEEE International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2018
CountrySouth Africa
CityCape Town
Period2/10/182/13/18

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Industrial and Manufacturing Engineering
  • Ceramics and Composites
  • Metals and Alloys

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