Slippery liquid infused porous surfaces with corrosion resistance potential on aluminum alloy

Yu, Ping; Lian, Zhongxu; Xu, Jinkai; Yu, Huadong

doi:10.1039/d0ra08674f

Cited by 10 publications

(7 citation statements)

References 35 publications

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“… 65 However, in the corrosive solution, the superhydrophobic property of SHS gradually disappeared under external pressure for a long time. 66 Compared with the fluoroalkyl silane-modified SHS, the air layer in the micro/nanoscale composite structures is replaced by the lubricant to form a more stable solid–liquid composite layer. Especially in water, the lubricant stored in the micro/nanoscale composite structures is incompatible with water, effectively isolating the contact between the corrosion solution and the Al alloy substrate ( Figure 13 b).…”

Section: Resultsmentioning

confidence: 99%

“…When the fluoroalkyl silane-modified SHS is immersed in the corrosion solution, an air layer is formed on the surface, which can reduce the real contact area between the corrosion solution and the fluoroalkyl silane-modified SHS and effectively improve the corrosion resistance of the fluoroalkyl silane-modified SHS (Figure a) . However, in the corrosive solution, the superhydrophobic property of SHS gradually disappeared under external pressure for a long time . Compared with the fluoroalkyl silane-modified SHS, the air layer in the micro/nanoscale composite structures is replaced by the lubricant to form a more stable solid–liquid composite layer.…”

Section: Resultsmentioning

confidence: 99%

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Laser-Induced Slippery Liquid-Infused Surfaces with Anticorrosion and Wear Resistance Properties on Aluminum Alloy Substrates

Cai

Lian

et al. 2022

ACS Omega

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Slippery liquid-infused surfaces (SLISs) are developed as a potential alternative to superhydrophobic surfaces (SHSs) to resolve the issues of poor durability in corrosion protection and wear resistance. In this work, we used a simple laser processing technology to prepare a SLIS on the aluminum alloy (7075) surface. The superhydrophobicities of the modified surface and the oil film formed by liquid injection make the corrosive medium difficult to directly contact the surface and thus have a significant effect on corrosion resistance. The water and oil repellent SLIS exhibits durable corrosion resistance and excellent tribological properties compared with the SHS. The anticorrosion and wear resistance performances provided by the composite film have been assessed by multiple methods including the electrochemical test, immersion test, and friction wear test. The results indicate that compared to the bare surface, laser-ablated surface (LAS), and fluoroalkyl silane-modified SHS, the SLIS composite coating has better corrosion resistance and wear resistance, which is of great significance to expand the potential applications of 7075 aluminum alloys. The work provides a research basis for expanding the practical application of SLISs in complex environments.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Laser-Induced Slippery Liquid-Infused Surfaces with Anticorrosion and Wear Resistance Properties on Aluminum Alloy Substrates

Cai

Lian

et al. 2022

ACS Omega

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“…As a matter of fact, it is caused by WEDM processing technique. [ 30 ] To be specific, when using WEDM to process aluminum alloy materials, high‐frequency pulse voltage is applied between the two poles. The energy is highly concentrated because the discharge time is extremely short.…”

Section: Results and Analysismentioning

confidence: 99%

Construction of Multiphase Mixing Interface for Delay Icing Based on Microarray Surface

Wan

Men

Gao³

et al. 2022

Adv Eng Mater

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Slippery liquid‐infused porous surface (SLIPS) is an emerging anti‐icing method. The anti‐icing mechanism of SLIPS is to prevent the heat transfer from liquid droplets to the surface by forming an oil film on the solid surface. However, the contact area between the droplet and the surface of the specimen increases due to the existence of the oil film, which accelerates the heat transfer and emergence of ice. Herein, in order to further improve the anti‐icing performance of SLIPS, a microscale square column array is fabricated by wire cut electrical discharge machining (WEDM) technology, on which a circular hole structure is constructed by nanosecond laser. Lubricating oil is then injected into the fluorinated surface to produce SLIPS. The maximum contact angle (CA) of the surface is 150° ± 1.2° and the contact angle hysteresis (CHA) is 1.2°. The contact mode of droplets on the surface is liquid–oil and liquid–gas, which is a multiphase mixing interface. The icing test shows that the icing time of the droplet is 4785 s at a surface temperature of −10 °C, exhibiting a good icing‐delay performance.

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“…1,2 However, when such aluminum strips/foils are manufactured, serious corrosion-induced pinholes are oen formed for the higher electrochemical reactivity of aluminum. [3][4][5] These defects subsequently reduce the mechanical properties, gas impermeability, electrical and thermal conductivity of aluminum strips/foils. Hence, corrosion inhibitors are commonly employed in cold-rolling operations to reduce corrosion damage of the aluminum surface.…”

Section: Introductionmentioning

confidence: 99%

Coumarin as a green inhibitor of chloride-induced aluminum corrosion: theoretical calculation and experimental exploration

Tang

Sun

et al. 2021

RSC Adv.

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Slippery liquid infused porous surfaces with corrosion resistance potential on aluminum alloy

Abstract: The slippery liquid infused porous surface has developed into a potential technology to solve the problem of poor durability in corrosion resistance.

Cited by 10 publications

References 35 publications

Laser-Induced Slippery Liquid-Infused Surfaces with Anticorrosion and Wear Resistance Properties on Aluminum Alloy Substrates

Laser-Induced Slippery Liquid-Infused Surfaces with Anticorrosion and Wear Resistance Properties on Aluminum Alloy Substrates

Construction of Multiphase Mixing Interface for Delay Icing Based on Microarray Surface

Coumarin as a green inhibitor of chloride-induced aluminum corrosion: theoretical calculation and experimental exploration

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