Robust Slippery Coating with Superior Corrosion Resistance and Anti-Icing Performance for AZ31B Mg Alloy Protection

Zhang, Jialei; Gu, C.D.; Tu, Jiangping

doi:10.1021/acsami.7b00972

Cited by 242 publications

(101 citation statements)

References 64 publications

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“…The submerged region of the superhydrophobic sample looked like a silver mirror when viewed from an oblique angle, which indicated that the air cushion had been trapped on the micro/ nanostructure based on the total reection theory. 39 The SLIPS Mg alloy showed no change on the surface irrespective of whether the area was immersed in water or exposed to air. These results further conrmed the notion that air pockets were replaced by lubricating oil (PFPE), which was in good agreement with the SEM image (Fig.…”

Section: Analysis Of the Wettability Of Different Samplesmentioning

confidence: 93%

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Song

Hai-long

et al. 2017

RSC Adv.

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adInspired by lotus leaves and pitcher plants, superhydrophobic surfaces and super slippery surfaces have been fabricated to improve the characteristics of AZ31 magnesium alloy surfaces. Here, a superhydrophobic surface with a hierarchical structure was constructed on a magnesium alloy surface via a one-step, environmentally friendly method, and a slippery liquid-infused porous surface (SLIPS) was obtained by immersing the superhydrophobic surface in perfluoropolyether. Compared with an untreated magnesium alloy and the prepared superhydrophobic coating, the SLIPS coating showed good corrosion resistance in 3.5 wt% NaCl solution according to electrochemical tests. The present study provides more possibilities to extend the application of special wettable surfaces.

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Section: Analysis Of the Wettability Of Different Samplesmentioning

confidence: 93%

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Song

Hai-long

et al. 2017

RSC Adv.

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“…[4,5] Corrosion first starts from the substrate surface and then extends to the interior of Mg alloy. [6,7] Surface treatment, as a convenient method, can isolate the substrate from the corrosive environment, which may be an effective way to prevent corrosion. [8][9][10][11][12] Laser cladding is a kind of surface treatment that has attracted many researchers among a number of possible coating technologies in recent years as laser cladding can provide a thick coating on Mg alloy substrate.…”

Section: Introductionmentioning

confidence: 99%

A dense and compact laser cladding layer with solid metallurgical bonding significantly improved corrosion resistance of Mg alloy for engineering applications

Li¹,

Yi²,

Jia

et al. 2020

Materials & Corrosion

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Although Mg alloy attracts great attention for engineering applications because of high specific strength and low density, low corrosion resistance limits its extensive use. In this study, Mg–Al–Zn–Mn alloy was treated via a laser cladding process to generate a dense and compact laser cladding layer with solid metallurgical bonding on the substrate for improving corrosion resistance, effectively hindering the corrosion pervasion into Mg alloy. The corrosion current density declined from 103 μA/cm2 for Mg alloy to 13 μA/cm2 for the laser cladding layer in NaCl aqueous solution. Moreover, the laser cladding layer was slightly corroded in comparison with Mg alloy in NaCl aqueous solution. Besides, the microhardness of the cladding layer reached a mean value of 170.5 HV, 3.1 times of Mg alloy (56.8 HV) due to the in situ formation of hardening intermetallic phases. Wear resistance of laser cladding layer was also obviously improved. These results demonstrated that the laser cladding layer obviously enhanced anticorrosion property of Mg alloy for engineering applications.

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“…And Bird et al designed macrotextures on the nonwetting surface to trigger a controlled asymmetry and nonuniform velocity field in the retracting film, theoretically and experimentally reducing the overall contact time. Besides, another strategy reported in recent researches intended to employ the porous coatings impregnated with deicing liquids to reduce the ice adhesion strength on substrates, which is identified as slippery, liquid‐infused porous surfaces (SLIPS), inspired by Nepenthes pitcher plants . Wong et al have reported an inexpensive strategy to create a self‐healing SLIPS, which effectively repelled complex fluids, such as crude oil, and ice even in a high humidity environment (e.g., 60% relative humidity).…”

Section: Introductionmentioning

confidence: 99%

A Novel Icephobic Strategy: The Fabrication of Biomimetic Coupling Micropatterns of Superwetting Surface

Wang

Zhan

et al. 2019

Adv Materials Inter

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or easily delaminated afterward by natural airflows or gravity, which are low cost and environment-friendly. These surfaces are identified as icephobic or anti-icing surfaces. In the past few decades, intensive efforts have been made for the fabrication of suitable icephobic surfaces and to reveal the behavior and mechanism of ice formation. [7][8][9] Recently, superhydrophobic surfaces (SHSs), [10] inspired by lotus leaves [11] and water-strider legs, [12] have shown the potential icephobic property because of the high water contact angle and ultralow flow resistance. Guo et al. [13] have shown that a micro/nanostructured surface has a robust icephobic/ anti-icing property and can extremely delay the ice formation time to 7000 s. Meuler et al. [14] have studied the average strengths of ice adhesion on the discs with a range of liquid water wettability, and found that the average strength of ice adhesion was reduced on SHS than bare steel discs, because SHSs possess the small areas of contact interface with ice. In addition, superhydrophobic material textured with different hierarchical structure exhibits spectacular dynamical properties. At the small scale of dew, superhydrophobic nanotextured surfaces can expel micrometric droplets as they coalesce with their neighbor droplets, demonstrating great anti-fogging/icing abilities. [15][16][17][18][19] Boreyko et al. [20] have reported a surprising self-jumping motion of the coalesced drops driven by the release of surface energy. The autonomous removal of drops does not rely on any external forces, so that it has the potential to prevent ice accumulation. Moreover, Hou et al. [21] successfully fabricated a novel beetle mimetic surface with high wetting contrast, which could greatly improve the droplet nucleation density, growth rate, and self-removal, as well as overall heat transfer coefficient. As to the macroscopic droplet, water impacting process on superhydrophobic surface contains three periods: spreading, retracting and rebounding. Researches have proved that the impacting process is also affected by the presence of large defects: submillimeter ridges, [22] big conical posts [23] or large chemical defects [24] on a water-repellent material, which can reduce the contact time dramatically. Liu et al. [25] found that a drop impinging on Echeveria leaves exhibited asymmetric bouncing dynamics. And Bird et al. [26] designed macrotextures on the nonwetting surface to trigger a controlled asymmetry and nonuniform velocity field in the retracting film, theoretically and experimentally reducing the overall contact time. Besides, another strategy reported in recent researches This work proposes a biphilic icephobic surface by combining the top-down and bottom-up methods. It is found that the impacting droplet on biphilic surface is divided into several parts during the recoiling process, which can significantly reduce the drop contact time before freezing. The anti-icing test of the biphilic surface in the simulated environment also proves its excellent icephobic capa...

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Robust Slippery Coating with Superior Corrosion Resistance and Anti-Icing Performance for AZ31B Mg Alloy Protection

Cited by 242 publications

References 64 publications

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

A dense and compact laser cladding layer with solid metallurgical bonding significantly improved corrosion resistance of Mg alloy for engineering applications

A Novel Icephobic Strategy: The Fabrication of Biomimetic Coupling Micropatterns of Superwetting Surface

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