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.
| Original language | English |
|---|---|
| Pages (from-to) | 1-22 |
| Number of pages | 22 |
| Journal | International Journal of Surface Engineering and Interdisciplinary Materials Science |
| Volume | 6 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jul 1 2018 |
Scopus Subject Areas
- Surfaces, Coatings and Films
- Biomaterials
Keywords
- Corrosion-Wear
- Erosion Testing
- Erosion-Corrosion
- Ethylene-Glycol/Water Coolant
- Liquid Impact Erosion
- Nanofluid
- Nanofluid Tribology
- Nanotribology
- Solid Particle Erosion