Application of Raman spectroscopy and X-ray diffraction to study the erosion-corrosion of UNS S32205 in mine water

A. Moloto, M. H.E. Seshweni, S. Aribo, O. E. Falodun, O. T. Olalemi, O. O. Ige, P. A. Olubambi

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Corrosion products play a prominent role in reducing the degradation rate of materials in harsh environments. In this work, the erosion-corrosion behaviour of duplex stainless steel (UNS S32205) in mine water, was characterised using X-ray diffraction and Raman spectrometry. The tests include erosion-corrosion in mine water and erosion in cathodically protected distilled water. X-ray diffraction and Raman spectroscopy were employed to confirm the presence of hydrolysed iron sulphate, chromium oxide, and hydrated iron oxides. The corrosion products were able to explain the effects of pH and flow velocity on the duplex stainless steel performance in the mine water environment.

Original languageEnglish
Pages (from-to)1273-1277
Number of pages5
JournalMaterials Today: Proceedings
Volume28
DOIs
Publication statusPublished - 2019
Event2nd International Conference on Recent Advances in Materials and Manufacturing Technologies, IMMT 2019 - Dubai, United Arab Emirates
Duration: 20 Nov 201922 Nov 2019

Keywords

  • Duplex stainless steel (UNS 32205)
  • Erosion-corrosion
  • Haematite
  • Raman spectroscopy
  • X-ray diffraction

ASJC Scopus subject areas

  • General Materials Science

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