Study on selective laser melting 316L stainless steel parts with superhydrophobic surface

Sun, Jianfeng; Wang, Weiqiang; Liu, Zhu; Li, Bo; Xing, Kaifeng; Yang, Zhou

doi:10.1016/j.apsusc.2020.147445

Cited by 30 publications

(9 citation statements)

References 26 publications

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“…From the perspective of corrosion potential and corrosion current density, it can be concluded that the corrosion resistance of the four samples is ranked from strong to weak: the 3D-printed + modified sample > the 3D-printed + corroded sample > the polished sample > the 3D-printed sample. This is consistent with the results obtained by Sun [27], and both confirm that the surface of the chemically modified 3D printing material has good corrosion resistance.…”

Section: Comparison Of Corrosion Resistance Of Different Samplessupporting

confidence: 92%

“…Selective Laser Melting (SLM) 3D-printed technology is one of the laser processing methods; its equipment adopts multi-beam printing, and the printing accuracy is at the micron level, so it has the advantages of high efficiency, good printing accuracy and a controllable shape, which is suitable for surface topography processing [26,27]. This paper introduces Selective Laser Melting (SLM) 3D-printed technology into the preparation of superhydrophobic surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Study on Preparation of Superhydrophobic Surface by Selective Laser Melting and Corrosion Resistance

Xing

et al. 2021

Applied Sciences

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Superhydrophobic surfaces are used in aerospace, medical equipment, transportation, household appliances and other fields due to their special interface characteristics. In this paper, a superhydrophobic surface is prepared by Selective Laser Melting (SLM) 3D-printed technology, comparing the effects of different post-treatment methods and time on corrosion resistance, and revealing the root cause of the transition from hydrophilic to superhydrophobic. The test results show that for samples not treated with fluoro-silane, the microstructure adsorbs the organic matter in the air and reduces the surface energy, which is the root cause of the sample surface changing from hydrophilic to superhydrophobic. In addition, the corrosion resistance of 3D-printed, polished, 3D-printed + modified, and 3D-printed + corroded samples are analyzed. Among them, 3D-printed + modified samples have a longer resistance to corrosion, and after placing in outdoor natural conditions for 60 days, the contact angle of water droplets on the surface is 150.8°, which still has superhydrophobic properties and excellent natural durability.

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Section: Comparison Of Corrosion Resistance Of Different Samplessupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Study on Preparation of Superhydrophobic Surface by Selective Laser Melting and Corrosion Resistance

Xing

et al. 2021

Applied Sciences

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“…The common 3D printing technologies for fabricating MAAMs-SW include fused deposition molding, selective laser sintering/melting, direct ink writing, stereolithography, and projection micro stereolithography [36,38,[149][150][151][152][153][154][155][156][157][158]. Sun et al [159] fabricated an inverted trapezoidal structure using selective laser melting, and figures 6(a)-(c) shows the SEM and optical images of the fabricated inverted trapezoidal structure. After aging treatment, the contact angle of the water droplet on the inverted trapezoidal structure was 156 • , and the inverted trapezoidal structure had excellent corrosion resistance and wear resistance.…”

Section: Additive Manufacturing Methodsmentioning

confidence: 99%

Recent progress in bio-inspired macrostructure array materials with special wettability—from surface engineering to functional applications

Lian,

Zhou,

Ren

et al. 2023

Int. J. Extrem. Manuf.

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Bio-inspired macrostructure array (MAA, size: submillimeter to millimeter scale) materials with special wettability (MAAMs-SW) have attracted considerable attention due to their outstanding performance in many fields, such as oil repellency, liquid/droplet manipulation, anti-icing, heat transfer, water collection, and oil−water separation. In this review, we mainly focus on recent developments in the theory, design, fabrication, and application of bio-inspired MAAMs-SW. First, we briefly introduce the basic theory of special wettability. Afterwards, we discuss representative structures and corresponding functions of some biological surfaces. Then, we summarize fabrication methods of special wetting MAAs from the three categories of additive manufacturing, subtractive manufacturing, and formative manufacturing, including 3D printing, laser etching, wire electrical discharge machining, micro-mechanical cutting machining, electrochemical machining, template method, and imprinting method. In addition, we demonstrate the applications of these MAAMs-SW. Lastly, the challenges and directions of future research on bio-inspired MAAMs-SW are briefly addressed.

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“…A large number of studies have shown that the surface microstructure is the main element that affects the wettability of the materials [1,6,21]. Field emission scanning electron microscopy (FESEM) was used to observe and research the microstructure of the adaxial and abaxial sides of the banana leaves.…”

Section: Surface Characteristics Of Banana Leavesmentioning

confidence: 99%

Banana Leaf Surface’s Janus Wettability Transition from the Wenzel State to Cassie–Baxter State and the Underlying Mechanism

et al. 2022

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Janus wettability plays an important role in certain special occasions. In this study, field emission scanning electron microscopy (FESEM) was used to observe the surface microstructure of banana leaves, the static wettability of the banana leaf surface was tested, and the dynamic response of water droplets falling at different heights and hitting on the adaxial and abaxial sides was studied. The study found that the nanopillars on the adaxial and abaxial sides of the banana leaf were different in shape. The nanopillars on the adaxial side were cone-shaped with large gaps, showing hydrophilicity (Wenzel state), and the heads of the nanopillars on the abaxial side were smooth and spherical with small gaps, showing weak hydrophobicity (Cassie–Baxter state). Banana leaves show Janus wettability, and the banana leaf surface has high adhesion properties. During the dynamic impact test, the adaxial and abaxial sides of the banana leaves showed different dynamic responses, and the wettability of the adaxial side of the banana leaves was always stronger than the abaxial side. Based on the structural parameters of nanopillars on the surface of the banana leaf and the classical wetting theory model, an ideal geometric model around a single nanopillar on both sides of the banana leaf was established. The results show that the established model has high accuracy and can reflect the experimental results effectively. When the apparent contact angle was 76.17°, and the intrinsic contact angle was 81.17° on the adaxial side of the banana leaf, steady hydrophilicity was shown. The abaxial side was similar. The underlying mechanism of Janus wettability on the banana leaf surface was elucidated. This study provides an important reference for the preparation of Janus wettability bionic surfaces and the efficient and high-quality management of banana orchards.

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Study on selective laser melting 316L stainless steel parts with superhydrophobic surface

Cited by 30 publications

References 26 publications

Study on Preparation of Superhydrophobic Surface by Selective Laser Melting and Corrosion Resistance

Study on Preparation of Superhydrophobic Surface by Selective Laser Melting and Corrosion Resistance

Recent progress in bio-inspired macrostructure array materials with special wettability—from surface engineering to functional applications

Banana Leaf Surface’s Janus Wettability Transition from the Wenzel State to Cassie–Baxter State and the Underlying Mechanism

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