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Article
Erosion-Corrosion Wear of Heat-Exchanger Materials by Water/ethylene-Glycol/alumina Nanofluids
International Journal of Surface Engineering and Interdisciplinary Materials Science
  • Gustavo J. Molina, Georgia Southern University
  • Fnu Aktaruzzaman, Georgia Southern University
  • Valentin Soloiu, Georgia Southern University
  • Mosfequr Rahman, Georgia Southern University
Document Type
Article
Publication Date
6-1-2018
DOI
10.4018/IJSEIMS.2018070101
Abstract

Nanofluids are suspensions of nanoparticles in ordinary coolants, but their tribological effects on heat-exchanger materials are unknown. Previous research has explored wear from distilled-water-base nanofluids only, while most engine-coolants are alcohol solutions in water. This article presents testing of aluminum and copper by jet impingement of 50%-ethylene-glycol in water solution and of its 2%-alumina nanofluid. The effects are investigated of nanoparticle addition on the anticorrosion protection provided by ethylene glycol. The observed modifications showed that ethylene-glycol in water nanofluid led to wear patterns that were different than those obtained with the base-fluid; nanoalumina addition enhanced erosion and corrosion on aluminum and copper. Comparing the effects of ethylene glycol and its nanofluid solutions to those from same tests performed with distilled-water and its nanofluid suggests that nanopowders can substantially enhance wear by decreasing the anticorrosion action of ethylene glycol by a synergetic mechanism of erosion-corrosion.

Citation Information
Gustavo J. Molina, Fnu Aktaruzzaman, Valentin Soloiu and Mosfequr Rahman. "Erosion-Corrosion Wear of Heat-Exchanger Materials by Water/ethylene-Glycol/alumina Nanofluids" International Journal of Surface Engineering and Interdisciplinary Materials Science Vol. 6 Iss. 2 (2018) p. 1 - 22 ISSN: 2166-7233
Available at: http://works.bepress.com/valentin-soloiu/44/