水/乙二醇/氧化铝纳米流体对热交换器材料冲蚀磨损的影响

Q4 Materials Science
G. Molina, Fnu Aktaruzzaman, V. Soloiu, Mosfequr Rahman
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引用次数: 3

摘要

纳米流体是普通冷却剂中纳米颗粒的悬浮液,但其对热交换器材料的摩擦学影响尚不清楚。以前的研究只探索了蒸馏水基纳米流体的磨损,而大多数发动机冷却剂都是水中的酒精溶液。本文介绍了用50%乙二醇水溶液及其2%氧化铝纳米流体射流冲击铝和铜的试验。研究了纳米颗粒的加入对乙二醇防腐性能的影响。观察到的修饰表明,乙二醇在水纳米流体中导致的磨损模式与在基液中获得的不同;纳米氧化铝的加入增强了铝和铜的侵蚀和腐蚀。将乙二醇及其纳米流体溶液的效果与蒸馏水及其纳米流体进行的相同试验的效果进行比较,结果表明,纳米粉末可以通过侵蚀-腐蚀的协同机制,通过降低乙二醇的防腐蚀作用,从而大大增强磨损
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Erosion-Corrosion Wear of Heat-Exchanger Materials by Water/Ethylene-Glycol/Alumina Nanofluids
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
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来源期刊
CiteScore
2.60
自引率
0.00%
发文量
22
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