Scanning Strategies in Laser Surface Texturing: A Review

Moskal, D.; Martan, J.; Honner, Milan

doi:10.3390/mi14061241

Cited by 12 publications

(5 citation statements)

References 190 publications

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“…Processing of thermally demanding materials can also be done by adapting the process strategy. [27] Here, in the displayed case of steel, the increase of HA while LST in dependence on the number of scanning repetitions is faster for continuous laser than for nanosecond laser.…”

Section: Discussionmentioning

confidence: 81%

High‐Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Kraft,

Peters,

Schille

et al. 2024

Physica Status Solidi (a)

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The preparation of surfaces for coating processes is indispensable for maximal adhesion and good coating results. These technical surfaces can be treated by chemical, mechanical, or physical procedures. In thermal spray coating, grit blasting is a standard process for surface preparation. This mechanical roughening and activation of the surfaces is fast and easy to handle. On the negative side, the grit gets wasted and the generated pattern is inflexible. Therefore, attempts to substitute grit blasting with a laser application is discussed in this article. Herein, a theoretical evaluation of high‐speed laser surface texturing (LST) is performed to find limits and points for the optimization of these processes. To estimate the surface processing rates, continuous wave, nanosecond, and ultrashort pulse laser machined dimples and grooves are investigated, and results of the spray coatings are presented afterward. The steel substrates are coated with Stellite 6 and tungsten. Adhesion tests and coating structures are analyzed. In terms of the optimization of the laser texturing, in situ temperature measurements show the influence of the laser process speed on the thermal load of the substrate. The influence of the number of scanning repetitions on heat accumulation during LST is also analyzed.

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Section: Discussionmentioning

confidence: 81%

High‐Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Kraft,

Peters,

Schille

et al. 2024

Physica Status Solidi (a)

Self Cite

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“…Surface treatment can change the wettability of titanium materials, but it depends on the chosen surface topography. Therefore, different authors report both hydrophobic and hydrophilic surfaces created by nanosecond and femtosecond lasers [57][58][59]. Bacteria can adhere to materials with low hydrophilicity through hydrophobic interactions.…”

Section: Bacterial Adhesionmentioning

confidence: 99%

Comparative study of cell interaction and bacterial adhesion on titanium of different composition, structure and surfaces with various laser treatment

Nekleionova,

Moztarzadeh,

Wiesnerova

et al. 2024

Mater. Res. Express

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Titanium and its alloys are commonly used in modern implantology. Cell viability on the surface of titanium implants depends on the surface topography, roughness, and wettability. Laser treatment is a successful method to control the surface morphology.The aim of this study was to comprehensively investigate the effects of laser ablation on titanium surfaces and their interactions with cells and bacteria. Cell adhesion, proliferation, and bacterial retention on smooth and laser-textured samples of commercially pure and nanostructured titanium of two grades were evaluated. Femtosecond laser treatment effectively enhances the wettability. Titanium grade four exhibits superior adhesion and proliferation rates when compared to titanium grade two. The cytotoxicity of nanostructured titanium is significantly lower, regardless of the surface treatment. Laser treatment resulted in increased short-term cell proliferation on grade two titanium and long-term cell proliferation on nanostructured grade two titanium only. Although the laser ablation has a limited effect on bacterial adhesion, the coverage of less than 1% in most samples indicates that the material itself has an antibacterial effect on the bacterial strain S. oralis.These findings provide valuable insights into how different material structures and surface treatments can affect cellular response and antibacterial properties for potential use in dental implantology.

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“…Given its use of a coherent beam, LST offers inherent benefits such as high accuracy, simple operation, cleanliness, and rapid processing. It has applications in various domains, including tribology, material engineering, wettability improvement, brazing, medicine, and optics [12][13][14][15][16]. LST is used to create precise microconvex arrays, microdimples, and microgrooves on the surfaces of materials (Figure 3).…”

Section: Ultrashort-pulsed-lstmentioning

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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Scanning Strategies in Laser Surface Texturing: A Review

Cited by 12 publications

References 190 publications

High‐Speed Laser Surface Structuring for Thermal Spray Coating Preparation

High‐Speed Laser Surface Structuring for Thermal Spray Coating Preparation

Comparative study of cell interaction and bacterial adhesion on titanium of different composition, structure and surfaces with various laser treatment

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

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