Characterisation of high-grade alloy behaviour in severe erosion-corrosion conditions

A. Neville, T. Hodgkiess

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

49 Citations (Scopus)

Abstract

A study has been made of the erosion-corrosion behaviour of two nominally corrosion resistant alloys (a superduplex stainless steel, UNS S32760 and Inconel 625 (UNS N00625) and a wear-resistant material Stellite 6 (UNS AMS5387). The experiments comprised exposure to an impinging jet of 3.5% sodium chloride solution at 100 m/s, 18°C and 50°C in the absence of entrained solids and also with 1000 parts per million sand particles at 25 m/s and 50°C. It was found that the passive film on the corrosion resistant materials remains essentially intact under solids-free impingement but that these alloys exhibit active corrosion under liquid-solid impingement and that the direct and indirect effects of corrosion on the erosion-corrosion behaviour of such alloys can be extensive. The study also demonstrated that there is a potential for significant galvanic interactions between materials when under different erosion regimes.

Original languageEnglish
Title of host publicationProceedings of 1998 International Conference on Erosive and Abrasive Wear (ICEAW) - 9th International Conference on Erosion by Liquid and Solid Impact (ELSI IX)
Pages596-607
Number of pages12
Volume233-235
DOIs
Publication statusPublished - Dec 1999
Event1998 International Conference on Erosive and Abrasive Wear - 9th International Conference on Erosion by Liquid and Solid Impact - Cambridge, UK
Duration: 13 Sep 199817 Sep 1998

Conference

Conference1998 International Conference on Erosive and Abrasive Wear - 9th International Conference on Erosion by Liquid and Solid Impact
Abbreviated titleICEAW - ELSI IX
CityCambridge, UK
Period13/09/9817/09/98

Keywords

  • Erosion corrosion
  • Ni- and Co-based alloys
  • Stainless steel

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