Modelling periodic structure formation on 100Cr6 steel after irradiation with femtosecond-pulsed laser beams

Tsibidis, George D.; Mimidis, Alexandros; Skoulas, Evangelos; Kirner, Sabrina V.; Krüger, Jörg; Bonse, Jörn; Stratakis, Emmanuel

doi:10.1007/s00339-017-1443-y

Cited by 58 publications

(88 citation statements)

References 67 publications

(122 reference statements)

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“…3c,f. After dual pulse processing, on the other hand, measured ablation remains below the calculated melting depth until the theoretical phase explosion threshold estimated by Tsibidis et al 38 is surpassed. A similar approximation of the measured and calculated values can be observed for the ablation width of stainless steel in the low fluence regime, illustrated in Fig.…”

Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 73%

“…Tsibidis et al 38 indicate a similar relation of phase explosion to the critical temperature for steel as Wang et al 36 using the critical temperature of iron (T cr = 8500 K) for their calculations. However, USP-DLIP patterns produced on stainless steel do not exhibit traces of spallation or phase explosion in our observations, which might be linked to the influence of superficial electron emission on atomic bond strength as discussed by Rethfeld et al 29 .…”

Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 76%

“…7b. Although the surface of steel does not show any characteristics of phase explosion even after five pulses, ablation can again be linked closely to the threshold temperature T PE of iron 38 . This is demonstrated by an increasing involvement of melt expulsion in ablation as soon as the lattice temperature surpasses this threshold, as illustrated in Fig.…”

Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 92%

“…On steel surfaces processed by USP laser irradiation, LIPSS formation dominates the sub-pattern morphology at a fluence of 1.48 J/cm², which is mainly related to an agglomeration of a higher number of pulses at low laser fluence 19,38 . Consequently, LIPSS formation is significantly reduced on stainless steel substrates by applying a lower pulse overlap combined with enhanced laser fluence, as visible in Fig.…”

Section: Effect Of Thermal Interaction On Surface Morphologymentioning

confidence: 98%

“…www.nature.com/scientificreports www.nature.com/scientificreports/ For stainless steel, the optical and thermal material parameters of iron were used, only adapting the material specific constants A and B, as well as the electron thermal conductivity k e0 to represent the low thermal conductivity of steel 38 . In the case of CuZn37 brass, the main parameters of copper were used, as its characteristics still dominate the metallic properties of this alloy.…”

Section: G Gmentioning

confidence: 99%

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Applying Ultrashort Pulsed Direct Laser Interference Patterning for Functional Surfaces

Müller

Fox

Grützmacher

et al. 2020

Sci Rep

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Surface structures in the micro-and nanometre length scale exert a major influence on performance and functionality for many specialized applications in surface engineering. However, they are often limited to certain pattern scales and materials, depending on which processing technique is used. Likewise, the morphology of the topography is in complex relation to the utilized processing methodology. in this study, the generation of hierarchical surface structures in the micro-as well as the sub-micrometre scale was achieved on ceramic, polymer and metallic materials by utilizing Ultrashort pulsed Direct Laser interference patterning (USp-DLip). the morphologies of the generated patterns where examined in relation to the unique physical interaction of each material with ultrashort pulsed laser irradiation. In this context, the pattern formation on copper, CuZn37 brass and AISI 304 stainless steel was investigated in detail by means of a combination of experiment and simulation to understand the individual thermal interactions involved in USp-DLip processing. thereby, the pattern's hierarchical topography could be tailored besides achieving higher process control in the production of patterns in the sub-µm range by USp-DLip. Highly specific surface properties in nature, like the well-known lotus and shark skin effects, are closely related to surface structures in the micrometre and nanometre length scale, often involving hierarchical patterns 1. In fact, such biomimetic surface patterns have already proven to provide unique properties in several technical systems including the manipulation of contact mechanics and optical properties like light diffraction and absorption 2-4. Patterns on the threshold between the micro-and the nanometre scale also showed to provide promising surface properties for medical products, as they can tailor the adhesion of both, cells and germs 5-7. In this context, current research projects investigate the intricacies to prevent biofilm formation by surface patterning of different solid materials on the International Space Station (ISS), which endanger its crew in terms of both, health and damage to critical components 8. The predominant impact on the unique properties of patterned surfaces is defined by the scale and morphology of the surface features also including sub-patterns, which have to be adjusted specifically for each application. For instance, in antibacterial applications, feature sizes in the sub-µm length scale showed to be most effective against bacterial adhesion 7-10. The processing methodology, dealing with such delicate surface modification, needs to ensure high machining precision as well as processing speeds and costs, which are able to compete with the classical methods of surface engineering. Besides lithographic methods, laser interference-based techniques have proven their worth in generating precise surface patterns, as they provide high processing speeds with little to no need for preparation and post-processing 11. Direct Laser Interference Patterning (DLIP) usi...

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Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 73%

Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 76%

Section: Usp-dlip On Metallic Materials Examination Of the Surface Tmentioning

confidence: 92%

Section: Effect Of Thermal Interaction On Surface Morphologymentioning

confidence: 98%

Section: G Gmentioning

confidence: 99%

See 3 more Smart Citations

Applying Ultrashort Pulsed Direct Laser Interference Patterning for Functional Surfaces

Müller

Fox

Grützmacher

et al. 2020

Sci Rep

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Fundamentals of Scanning Surface Structuring by Ultrashort Laser Pulses: From Electron Diffusion to Final Morphology

Nyenhuis

Terekhin

Menold

et al. 2022

Advanced Photonics Research

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Femtosecond Laser‐Induced Periodic Surface Structuring of the Topological Insulator Bismuth Telluride

Nivas

Salvatore

et al. 2023

Advanced Physics Research

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Surface structuring of topological insulator Bi2Te3 single crystals with femtosecond laser by varying pulses N and energy E is reported. Interesting effects related to laser‐induced periodic surface structures formation in this class of materials are evidenced. At low pulse energy, a clear formation of periodic, subwavelength ripples oriented orthogonally to the laser polarization is observed; those are restricted to an annular region surrounding a featureless central disk as the laser energy progressively increases. The structural analysis shows that some degree of crystallinity is preserved in the rippled area, but the central disk is amorphous resembling what is observed for germanium (Ge) and is associated with the hindering of surface structure formation due to a thick melted surface layer. Interestingly, at larger fluence or number of pulses, a transition to suprawavelength grooves occurs within the annular region covered by surface structures. The findings demonstrate a clear incubation behavior, suggesting that the formation of laser‐induced periodic surface structures is coherent with the general features of the process already reported for other materials. However, the disappearance of these structures in the central area, possibly resulting from the influence of the depth of the melt layer, indicates a mixed behavior for Bi2Te3.

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Modelling periodic structure formation on 100Cr6 steel after irradiation with femtosecond-pulsed laser beams

Cited by 58 publications

References 67 publications

Applying Ultrashort Pulsed Direct Laser Interference Patterning for Functional Surfaces

Applying Ultrashort Pulsed Direct Laser Interference Patterning for Functional Surfaces

Fundamentals of Scanning Surface Structuring by Ultrashort Laser Pulses: From Electron Diffusion to Final Morphology

Femtosecond Laser‐Induced Periodic Surface Structuring of the Topological Insulator Bismuth Telluride

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