A comparative study of the corrosion and ion release behaviour of chromium oxide coatings exposed to saline, Ringer's and Hank's physiological solutions

A. M. Oje, A. A. Ogwu, Alex I. Oje, Nathaniel Tsendzughul, S. Ur Rahman

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Chromium oxide coatings deposited on stainless steel substrates by RF reactive magnetron sputtering were tested for their corrosion and ion release behaviour in three physiological solutions. The Raman investigations showed that the coatings were predominantly Cr2O3. The coatings tested in Ringer's and Hank's solutions possess lower defect densities, better corrosion resistance, and lower ion release when compared to those tested in saline solution. The overall minimal chromium ion release from these samples suggests that the coatings have the potential to be used as an implantable coating for orthopaedic implant applications where material degradation and ion release remains a major concern.

Original languageEnglish
Article number108533
JournalCorrosion Science
Volume167
DOIs
Publication statusPublished - May 1 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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