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首页> 外文期刊>International journal of surface engineering and interdisciplinary materials science >Erosion-Corrosion Wear of Heat-Exchanger Materials by Water/ Ethylene-Glycol/Alumina Nanofluids
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Erosion-Corrosion Wear of Heat-Exchanger Materials by Water/ Ethylene-Glycol/Alumina Nanofluids

机译：用水/乙二醇/氧化铝纳米流体侵蚀热交换器材料的腐蚀磨损

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摘要

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.
机译：纳米流体是普通冷却剂中纳米颗粒的悬浮液，但它们对热交换器材料的摩擦学作用是未知的。以前的研究仅探索了蒸馏水碱纳米流体的磨损，而大多数发动机冷却剂是水中的醇溶液。本文通过水溶液中的50％ - 二醇和其2％-Alumina纳米流体进行50％ - 乙二醇的喷射冲击来测试铝和铜的测试。对乙二醇提供的防腐保护的纳米粒子添加研究了效果。所观察到的修饰表明，水纳米流体中的乙二醇导致磨损的图案不同于用碱流体获得的图案; Nanoalumina添加铝和铜的增强腐蚀和腐蚀。比较乙二醇及其纳米流体溶液对由蒸馏水和​​纳米流体进行的相同试验的影响表明，纳米粉末通过侵蚀腐蚀的协同机理降低乙二醇的防腐作用，可以基本上增强磨损。

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