Corrosion behaviour of Ti-Al-xV-yFe experimental alloys in 3.5 wt% NaCl and 3.5 M H2SO4

Michael O. Bodunrin, Lesley H. Chown, Josias W. van der Merwe, Kenneth K. Alaneme

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The corrosion behaviour of Ti-6Al-xV-yFe (where x + y = 4; x = 0–3; and y = 1–4) experimental alloys in comparison with commercial Ti-6Al-4V alloy was investigated in sodium chloride and sulphuric acid solutions. Iron, a less expensive beta stabilising element was substituted for vanadium in the newly developed alloys in order to assess the influence of iron addition on the corrosion performance of the alloys. Electrochemical parameters were obtained using open circuit potential and potentiodynamic polarisation measurements. The results show that partial replacement of vanadium with 2–3 wt% iron yielded excellent corrosion resistance in 3.5 wt% sodium chloride. The experimental alloys have better corrosion resistance than the commercial Ti-6Al-4V alloy in 3.5 M sulphuric acid.

Original languageEnglish
Pages (from-to)770-780
Number of pages11
JournalMaterials and Corrosion - Werkstoffe und Korrosion
Issue number6
Publication statusPublished - Jun 2018
Externally publishedYes


  • low-cost titanium
  • open circuit potential
  • passivation
  • polarisation

ASJC Scopus subject areas

  • Environmental Chemistry
  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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