A new methodology for modelling erosion–corrosion regimes on real surfaces: Gliding down the galvanic series for a range of metal-corrosion systems

M.M. Stack, M. Abdelrahman, B. Jana

Research output: Contribution to journalArticle

28 Citations (Scopus)
438 Downloads (Pure)

Abstract

Erosion-corrosion of materials in aqueous environments is a complex phenomenon involving a very large number of variables. In such cases, characteristics of the target, particle and the environment affect the degradation mechanism. Predicting material behaviour may sometimes be a "black art" due to the parameter size which is involved in such processes. In studies of erosion-corrosion, there have been significant advances in the modelling of such processes in recent years. Various methodologies employed include quasi-static modelling, using CFD modelling and erosion-corrosion mapping. In such cases, the output of the various models can differ significantly. In this work, a methodology combining CFD modelling and erosion-corrosion mapping has been developed to model erosion-corrosion behaviour of pure metals, which variously passivate and dissolve under a range of simulated conditions. This provides a means of mapping the component undergoing erosion-corrosion and thus is a step change on previous modelling work in this area as it enables superimposition of the erosion-corrosion map on real surfaces. The relative advantages and limitations of this approach are discussed in this paper.
Original languageEnglish
Pages (from-to)533-542
Number of pages10
JournalWear
Volume268
Issue number3-4
DOIs
Publication statusPublished - 4 Feb 2010

Keywords

  • CFD modelling
  • erosion-corrosion regimes
  • 3-D maps
  • pure metals

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