An approach to mapping the erosion-corrosion of stainless steel: Applications to tidal energy systems

Margaret Stack, Joshua Crawley, Mark Miller

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

1 Citation (Scopus)

Abstract

Previous investigations into the erosive-corrosive wear of metals in aqueous conditions have concluded that the process is best described by discrete wear regimes. Such regimes identify the dominant wear process that is causing wastage of the target material. Primarily the regimes are categorized by the dominating electrochemical process, whether this is dissolution, passivation or immunity. These are then separated further depending on how erosion contributes to the overall material loss.
In order to help visualise the erosion-corrosion behaviour of different metals, wear maps have been developed which show the various wear regimes as a function of applied potential and impinging particle velocity. Due to the large number of independent and interdependent variables in the mathematical model of the erosion-corrosion mechanism, the wear map has become a valuable tool in predicting the performance of a pure metal, when subjected to impinging aqueous slurry.
Until now, erosion-corrosion maps have had limited prospects for commercial use since they only exist for pure metals. This paper proposes a method for the generation of wear maps for stainless steel. Erosion-corrosion regime and wastage maps are then constructed, for the Iron-Chromium-Nickel system, based on this method. These maps are further developed by exploring the effect of increasing particle concentration.
In order to demonstrate how these wear maps are utilised in a practical situation, a hypothetical problem is posed, based on a tidal power generator, and the erosion-corrosion model applied accordingly. Following this, material selection maps are presented and discussed. These superimposed wastage maps provide an easy method for selecting the choice material for any given range of environmental conditions. Finally, the model used to construct the maps is discussed and thoughts for future work outlined.

LanguageEnglish
Title of host publicationTribo-Corrosion
Subtitle of host publicationResearch, Testing and Applications
Pages1-28
Publication statusPublished - May 2013
Event3rd International Symposium on Tribo-Corrosion - Atlanta, Georgia, United States
Duration: 19 Apr 201220 Apr 2012

Conference

Conference3rd International Symposium on Tribo-Corrosion
CountryUnited States
CityAtlanta, Georgia
Period19/04/1220/04/12

Fingerprint

Stainless Steel
Erosion
Stainless steel
Corrosion
Wear of materials
Metals
Tidal power
Caustics
Chromium
Nickel
Passivation
Dissolution
Iron
Mathematical models

Keywords

  • erosion-corrosion
  • stainless steel
  • tidal energy
  • mapping

Cite this

Stack, M., Crawley, J., & Miller, M. (2013). An approach to mapping the erosion-corrosion of stainless steel: Applications to tidal energy systems. In Tribo-Corrosion: Research, Testing and Applications (pp. 1-28)
Stack, Margaret ; Crawley, Joshua ; Miller, Mark. / An approach to mapping the erosion-corrosion of stainless steel : Applications to tidal energy systems. Tribo-Corrosion: Research, Testing and Applications. 2013. pp. 1-28
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abstract = "Previous investigations into the erosive-corrosive wear of metals in aqueous conditions have concluded that the process is best described by discrete wear regimes. Such regimes identify the dominant wear process that is causing wastage of the target material. Primarily the regimes are categorized by the dominating electrochemical process, whether this is dissolution, passivation or immunity. These are then separated further depending on how erosion contributes to the overall material loss. In order to help visualise the erosion-corrosion behaviour of different metals, wear maps have been developed which show the various wear regimes as a function of applied potential and impinging particle velocity. Due to the large number of independent and interdependent variables in the mathematical model of the erosion-corrosion mechanism, the wear map has become a valuable tool in predicting the performance of a pure metal, when subjected to impinging aqueous slurry. Until now, erosion-corrosion maps have had limited prospects for commercial use since they only exist for pure metals. This paper proposes a method for the generation of wear maps for stainless steel. Erosion-corrosion regime and wastage maps are then constructed, for the Iron-Chromium-Nickel system, based on this method. These maps are further developed by exploring the effect of increasing particle concentration. In order to demonstrate how these wear maps are utilised in a practical situation, a hypothetical problem is posed, based on a tidal power generator, and the erosion-corrosion model applied accordingly. Following this, material selection maps are presented and discussed. These superimposed wastage maps provide an easy method for selecting the choice material for any given range of environmental conditions. Finally, the model used to construct the maps is discussed and thoughts for future work outlined.",
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Stack, M, Crawley, J & Miller, M 2013, An approach to mapping the erosion-corrosion of stainless steel: Applications to tidal energy systems. in Tribo-Corrosion: Research, Testing and Applications. pp. 1-28, 3rd International Symposium on Tribo-Corrosion, Atlanta, Georgia, United States, 19/04/12.

An approach to mapping the erosion-corrosion of stainless steel : Applications to tidal energy systems. / Stack, Margaret; Crawley, Joshua; Miller, Mark.

Tribo-Corrosion: Research, Testing and Applications. 2013. p. 1-28.

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

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N2 - Previous investigations into the erosive-corrosive wear of metals in aqueous conditions have concluded that the process is best described by discrete wear regimes. Such regimes identify the dominant wear process that is causing wastage of the target material. Primarily the regimes are categorized by the dominating electrochemical process, whether this is dissolution, passivation or immunity. These are then separated further depending on how erosion contributes to the overall material loss. In order to help visualise the erosion-corrosion behaviour of different metals, wear maps have been developed which show the various wear regimes as a function of applied potential and impinging particle velocity. Due to the large number of independent and interdependent variables in the mathematical model of the erosion-corrosion mechanism, the wear map has become a valuable tool in predicting the performance of a pure metal, when subjected to impinging aqueous slurry. Until now, erosion-corrosion maps have had limited prospects for commercial use since they only exist for pure metals. This paper proposes a method for the generation of wear maps for stainless steel. Erosion-corrosion regime and wastage maps are then constructed, for the Iron-Chromium-Nickel system, based on this method. These maps are further developed by exploring the effect of increasing particle concentration. In order to demonstrate how these wear maps are utilised in a practical situation, a hypothetical problem is posed, based on a tidal power generator, and the erosion-corrosion model applied accordingly. Following this, material selection maps are presented and discussed. These superimposed wastage maps provide an easy method for selecting the choice material for any given range of environmental conditions. Finally, the model used to construct the maps is discussed and thoughts for future work outlined.

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Stack M, Crawley J, Miller M. An approach to mapping the erosion-corrosion of stainless steel: Applications to tidal energy systems. In Tribo-Corrosion: Research, Testing and Applications. 2013. p. 1-28