Erosion–corrosion behaviour of spark plasma sintered WC - 12Co in aggressive media

O. O. Ige, S. Aribo, B. A. Obadele, T. Langa, K. M. Oluwasegun, M. B. Shongwe, P. A. Olubambi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Erosion-corrosion is a complex degradation mechanism prevalent in multiphase system and material selection is a strategy to mitigate the destructive process. This study evaluates the candidature of spark plasma sintered WC-12Co in aggressive media and with sand particles via rotating cylinder electrode. Corrosion and hardness tests were carried out, and the cermets surface morphology was examined. General corrosion results from total mass loss showed the least degradation resistance in sulphuric acid which informed the recommendation of the alloy for industrial applications in simulated mine water and seawater. Localised attack parameters from cyclic potentiodynamic polarization and the micrographs were well correlated.

Original languageEnglish
Pages (from-to)36-43
Number of pages8
JournalInternational Journal of Refractory Metals and Hard Materials
Volume66
DOIs
Publication statusPublished - Aug 1 2017
Externally publishedYes

Fingerprint

Electric sparks
Corrosion
Plasmas
Degradation
Potentiodynamic polarization
Cermets
Seawater
Industrial applications
Surface morphology
Erosion
Sand
Hardness
Electrodes
Acids
Water

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Ige, O. O. ; Aribo, S. ; Obadele, B. A. ; Langa, T. ; Oluwasegun, K. M. ; Shongwe, M. B. ; Olubambi, P. A. / Erosion–corrosion behaviour of spark plasma sintered WC - 12Co in aggressive media. In: International Journal of Refractory Metals and Hard Materials. 2017 ; Vol. 66. pp. 36-43.
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Erosion–corrosion behaviour of spark plasma sintered WC - 12Co in aggressive media. / Ige, O. O.; Aribo, S.; Obadele, B. A.; Langa, T.; Oluwasegun, K. M.; Shongwe, M. B.; Olubambi, P. A.

In: International Journal of Refractory Metals and Hard Materials, Vol. 66, 01.08.2017, p. 36-43.

Research output: Contribution to journalArticle

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AU - Aribo, S.

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AB - Erosion-corrosion is a complex degradation mechanism prevalent in multiphase system and material selection is a strategy to mitigate the destructive process. This study evaluates the candidature of spark plasma sintered WC-12Co in aggressive media and with sand particles via rotating cylinder electrode. Corrosion and hardness tests were carried out, and the cermets surface morphology was examined. General corrosion results from total mass loss showed the least degradation resistance in sulphuric acid which informed the recommendation of the alloy for industrial applications in simulated mine water and seawater. Localised attack parameters from cyclic potentiodynamic polarization and the micrographs were well correlated.

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