Droplet spreading and wettability of laser textured C-263 based nickel superalloy

Prakash, Fleming; Jeyaprakash, N.; Duraiselvam, Muthukannan; Prabu, G.; Yang, Che‐Hua

doi:10.1016/j.surfcoat.2020.126055

Cited by 9 publications

(5 citation statements)

References 42 publications

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“…The roughness of the specimen's surface improved its wettability. The hydrophilic surface grows more hydrophilic as surface roughness increases, whereas the hydrophobic section becomes more hydrophobic as surface roughness increases [38]. This suggests the laser-textured glass surface is in a Wenzel state as the droplets spread out within the rough surface.…”

Section: Surface Roughnessmentioning

confidence: 99%

Laser Texturing of Soda Lime Glass Surface for Hydrophobic Surface in Wenzel State

Nur Najwa,

Najihah,

Aqida

et al. 2024

Int. J. Automot. Mech. Eng.

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Glass surfaces tend to be hydrophilic when exposed to water resulting in a low water contact angle and high adhesion. Fabrication on a glass surface with low water adhesion can minimize the droplet’s adhesion conduct self-cleaning, and improve the cleanliness of the glass surface. This paper presents surface texturing of the soda-lime glass surface by laser processing three different patterns to improve water contact angle with low water adhesion on the modified glass surface. A design experiment method was developed to determine the effects of laser parameters on the glass surfaces. The laser parameters used are laser power between 0.45 and 1.05W and scanning speeds of 210, 420, and 600 mm/min. The effects of laser parameters on surface morphology, water contact angle measurement, and average surface roughness, Ra were investigated. The characterization was conducted for surface morphology, two-dimensional surface roughness profile, and water contact angle. The results show that the highest water contact angle obtained after laser texturing is up to 125.29° compared to the as-received surface with a contact angle of 32.35°. The highest water contact angle resulted from 420 mm/min scanning speed and 0.45 W of laser power, responding to the surface with a minimum range of Rax and Ray of 0.96 and 1.5 μm. These findings are significant for designing surface modification of self-cleaning glass surface applications like the automotive windscreens, and window panels for high-rise buildings.

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Section: Surface Roughnessmentioning

confidence: 99%

Laser Texturing of Soda Lime Glass Surface for Hydrophobic Surface in Wenzel State

Nur Najwa,

Najihah,

Aqida

et al. 2024

Int. J. Automot. Mech. Eng.

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“…The experimental findings showed that laser texturing quickly caused the surfaces to become superhydrophilic. Prakash et al [21] used an Nd:YAG picosecond laser operating at 3 W, 532 nm, and 45 kHz to produce texture on a Ni-based superalloy (C-263) to investigate surface roughness and wetting behavior. Four wave-pattern combinations were applied to the sample surface using the Nd:YAG laser.…”

Section: Wettability and Surface Roughnessmentioning

confidence: 99%

“…Conversely, faster scanning speeds enable deeper penetration while minimizing the size of the HAZ [39]. Prakash et al [21] and Chen et al [27] demonstrated that increasing the scanning speed effectively reduces the surface roughness. LST processes can modify the geometry of surface features with multiple pulses.…”

Section: Effects Of Laser Parameters On Surface Roughness and Wettabi...mentioning

confidence: 99%

Enhancement of Surface Properties Using Ultrashort-Pulsed-Laser Texturing: A Review

Alsaigh

2024

Crystals

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Surface texturing, which has recently garnered increased attention, involves modifying the surface texture of materials to enhance their tribology. Various methods have been developed for surface texturing. Laser surface texturing (LST) has attracted considerable interest because of its excellent texturing accuracy, controllability, and flexibility. It improves surface wettability properties and increases the wear resistance of materials while reducing the coefficient of friction. Herein, we present an overview of the underlying mechanisms of interactions between short-pulsed lasers and materials. In addition, we review published studies on the effects of LST on surface properties, including surface roughness, wettability, friction, and wear resistance. We believe that this review will provide valuable insights into the recent advances in surface property enhancement through LST, which exhibits potential for various applications.

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“…(c) Relationship between the CA and roughness (R, F, and L represent roughness, fluence, and pitch, respectively; S z is similar to the roughness). Reproduced from [155] [171–173] with permission from Elsevier…”

Section: Fabricating Extreme Wetting Surfaces By Laser Surface Texturingmentioning

confidence: 99%

“…The pitch distance of the maximum CAs increases with increasing laser fluence. Therefore, the hydrophobic surface becomes more hydrophobic with the increase of surface roughness [172]. Such studies can only provide the optimal range of laser parameters for obtaining a particular wettability.…”

Section: Fabricating Extreme Wetting Surfaces By Laser Surface Texturingmentioning

confidence: 99%

Metal surface wettability modification by nanosecond laser surface texturing: A review

Liu

Niu

Lei

et al. 2022

Biosurface and Biotribology

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Laser surface texturing (LST) is a non‐contact manufacturing process for fabricating functional surfaces in a manner that improves the corresponding wettability, and is widely used in biomedicine and industry. Laser surface texturing is a facile approach that is compatible with various materials, can result in a hierarchical texture, and enables a high degree of surface wetting (i.e., extreme wetting). In addition to surface structures, surface chemical modification is a primary factor in producing extreme wetting surfaces. This review discusses the effects of various surface textures and surface chemistries on wettability. Optimal laser parameters for the desired surface texture are based on the fundamental wettability and laser mechanism. In particular, bumps in the morphology are conducive to obtaining extreme wetting. Diverse surface chemical strategies result in extreme wetting by different mechanisms. This paper makes a rigorous evaluation of the laser parameters and optimal surface chemical modifications by elucidating the relationships between the surface structure, surface chemical modification, and wettability, and in so doing, determines the final wettability. The unresolved problems of LST are presented in the conclusion. This review provides guidance, development directions, and an integrated framework for LST, which will be useful for fabricating extreme wetting surfaces on various metals.

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Droplet spreading and wettability of laser textured C-263 based nickel superalloy

Cited by 9 publications

References 42 publications

Laser Texturing of Soda Lime Glass Surface for Hydrophobic Surface in Wenzel State

Laser Texturing of Soda Lime Glass Surface for Hydrophobic Surface in Wenzel State

Enhancement of Surface Properties Using Ultrashort-Pulsed-Laser Texturing: A Review

Metal surface wettability modification by nanosecond laser surface texturing: A review

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