Corrosion behaviour of alpha phase aluminium bronze alloy in selected environments

Oluwayomi Balogun, Joseph Borode, Kenneth Alaneme, Michael Bodunrin

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This research investigated the corrosion behaviour of aluminium (8 wt %) bronze alloys produced via sand casting in acidic, alkaline, and marine environments. The aluminium bronze was produced from aluminium (6063) alloy and copper scraps by sand casting according to European standard specification (UNS. C61400- CuAl8), after which they were cut into smaller sizes and immersed in the selected corrosive media for corrosion test investigation. H2SO4, NaCl, NaOH, and HCl of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M were setup for 45 days for the corrosion study. Selective phase attack was observed in the alloy, although it was much more pronounced in HCl, to the point where entire grains fell out while it exhibit minimal corrosion resistance in marine and alkaline media respectively. Intense chloride attack on the protective film formed on the surface of the aluminium bronze was observed to be responsible for the greater corrosion susceptibility of the alloy in HCl environments. Comparative studies of aluminium bronze in selected environments indicated that no corrosion was observed and the alloys have a greater tendency to be applicable in marine, alkaline and sulphuric acid environments.

Original languageEnglish
Pages (from-to)113-125
Number of pages13
JournalLeonardo Electronic Journal of Practices and Technologies
Issue number24
Publication statusPublished - Jan 2014
Externally publishedYes


  • Aluminium 6063
  • Aluminium bronze
  • Copper scraps
  • Corrosion test
  • Corrosive media
  • Grains
  • Sand casting
  • Selective phase attack

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Corrosion behaviour of alpha phase aluminium bronze alloy in selected environments'. Together they form a unique fingerprint.

Cite this