Effect of Al2O3 nanoparticles on the corrosion behavior of aluminum alloy in simulated vehicle coolant

Huang, Xin; Wang, Le-Tian; Song, Yuxin; Ge, Fang; Zhang, Yi; Meng, Xinjing; Ge, Honghua; Zhao, Yuzeng

doi:10.1016/j.jallcom.2021.159807

Cited by 19 publications

(5 citation statements)

References 38 publications

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“…A number of studies have shown that the degradation of nanostructures in conditions of aggressive media proceeds according to the mechanisms of pitting corrosion with the formation of ulcerous inclusions or growths leading to partial destruction of nanostructures [13][14][15]. At the same time, as it was shown in the works, the corrosion mechanisms depend very strongly on the phase composition of the initial structures, as well as on the degree of structural ordering [16,17]. Metal oxide nanoparticles based on ferrite or orthoferrite compounds are the most unstable to corrosion processes and degradation mechanisms.…”

Section: Introductionmentioning

confidence: 84%

Study of Corrosion Mechanisms in Corrosive Media and Their Influence on the Absorption Capacity of Fe2O3/NdFeO3 Nanocomposites

et al. 2022

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This paper presents the results of a study of the change in the stability of Fe2O3/NdFeO3 nanocomposites when exposed to aggressive media over a long period of time. The main purpose of these studies is to investigate the mechanisms of degradation and corrosion processes occurring in Fe2O3/NdFeO3 nanocomposites, as well as the influence of the phase composition on the properties and degradation resistance. According to the X-ray phase analysis, it was found that the variation of the initial components leads to the formation of mixed composition nanocomposites with different Fe2O3/NdFeO3 phase ratios. During corrosion tests, it was found that the dominance of the NdFeO3 phase in the composition of nanocomposites leads to a decrease in the degradation and amorphization rate of nanostructures by a factor of 1.5–2 compared to structures in which the Fe2O3 phase dominates. Such a difference in the degradation processes indicates the high stability of two-phase composites. Moreover, in the case of an aqueous medium, nanocomposites dominated by the NdFeO3 phase are practically not subjected to corrosion and deterioration of properties. The results obtained helped to determine the resistance of Fe2O3/NdFeO3 nanocomposites to degradation processes caused by exposure to aggressive media, as well as to determine the mechanisms of property changes in the process of degradation. The results of the study of the absorption capacity of Fe2O3/NdFeO3 nanocomposites in the case of the purification of aqueous media from manganese and arsenic showed that a change in the phase ratio in nanocomposites leads to an increase in the absorption efficiency of pollutants from aqueous media.

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Section: Introductionmentioning

confidence: 84%

Study of Corrosion Mechanisms in Corrosive Media and Their Influence on the Absorption Capacity of Fe2O3/NdFeO3 Nanocomposites

et al. 2022

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“…Nevertheless, no enhanced brass resistance to TiO 2 -water nanofluid is acquired with SDBS addition due to the lack of protective film [110]. In a similar way, Al 2 O 3 -water nanofluid contributes to corrosion by weakening the SDBS protective layer on aluminum alloy 6061 [111].…”

Section: Abrasion Erosion and Corrosion Characteristics Of Nanofluidsmentioning

confidence: 98%

Experiments on Single-Phase Nanofluid Heat Transfer Mechanisms in Microchannel Heat Sinks: A Review

2022

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For more than 20 years, the use of nanofluids to enhance heat transfer in microchannel heat sinks (MCHSs) has been the subject of a large number of scientific articles. Despite the great potentialities reported in several works, the presence of controversial results and the lack of understanding of heat transfer enhancement mechanisms prevent further advancement in the use of nanofluids as coolants. This article reviews the scientific literature focused on several aspects of nanofluids that have a role in the heat transfer enhancement within the MCHSs: nanofluid stability, thermal conductivity, and particle clustering, as well as the particle–surface interactions, i.e., abrasion, erosion, and corrosion. We also include the most relevant works on the convective heat transfer and MCHSs operated with nanofluids in our review.

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“…As one of the primary metallic materials used in various applications of aerospace, vehicle, pipeline, building etc., aluminum (Al) has attracted momentous attentions due to its numerous advantages, such as light weight, excellent mechanical performance, high manufacturing amenability, low-cost, and so forth. [1][2][3][4] Nevertheless, harsh working environment (including: high humidity, high salinity, dusty air etc.) induced pollution and corrosion on Al substrate, which resulted in its performance decrease and operating cost increase.…”

Section: Introductionmentioning

confidence: 99%

Controlling Superhydrophobicity of Aluminum with Hierarchical Micro‐Nanostructure Film for Superb Self‐Cleaning and Anti‐Corrosion

Zhang

et al. 2022

ChemistrySelect

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In this study, typical electrodeposition method was proposed to fabricate uniform CuO hierarchical micro-nanostructure on aluminum (Al) substrate. The superhydrophobic protective film was then fabricated by modifying stearic acid (STA) on this hierarchical CuO film. The static water contact angle reached up to 163°by coating CuO/STA film on Al substrate, and the rolling-off angle was as low as 3.7°. In addition, CuO/STA coated Al displayed wonderful non-sticking performance when the free-falling water droplets contact the surface. As expected, superb anti-corrosion properties of Al were achieved by coating superhydrophobic CuO/STA film on Al. The corrosion current density of CuO/STA coated Al decreased 2 orders of magnitude comparing with that of pristine Al, and the corrosion protection efficiency of CuO/STA coated Al reached up to 98 % in comparison with pristine Al. Therefore, superhydrophobic CuO/ STA film coated Al substrate greatly prolong the working life of Al materials in harsh working condition. The universal method used in this study also provides a potential route for coating superhydrophobic and anti-corrosion protective film on other metallic substrates or conductive substrates.

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Effect of Al2O3 nanoparticles on the corrosion behavior of aluminum alloy in simulated vehicle coolant

Cited by 19 publications

References 38 publications

Study of Corrosion Mechanisms in Corrosive Media and Their Influence on the Absorption Capacity of Fe2O3/NdFeO3 Nanocomposites

Study of Corrosion Mechanisms in Corrosive Media and Their Influence on the Absorption Capacity of Fe2O3/NdFeO3 Nanocomposites

Experiments on Single-Phase Nanofluid Heat Transfer Mechanisms in Microchannel Heat Sinks: A Review

Controlling Superhydrophobicity of Aluminum with Hierarchical Micro‐Nanostructure Film for Superb Self‐Cleaning and Anti‐Corrosion

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