Investigation of laser surface texturing parameters of biomedical grade Co-Cr-Mo alloy

Kasman, Şefika; Uçar, İbrahim Can; Ozan, Sertan

doi:10.1007/s00170-023-10959-4

Cited by 9 publications

(7 citation statements)

References 59 publications

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“…The value of a surface's contact angle depends on the surface's roughness, surface chemistry, and topography which influence the surface's texture. 27,[56][57][58] According to the ANOVA results, each parameter for the contact angle was statistically insignificant. The contact angles characterize the surface as super hydrophilic and hydrophilic on all surfaces except E19 lasertextured surface.…”

Section: Discussionmentioning

confidence: 99%

“…14,25,26 Surface texturing with the help of a laser beam is one of the practical techniques used to create patterns with a specific texture on implant surfaces. 27 Regardless of the hardness of the material, the laser beam stands out with an increasing usage trend with the contribution of the versatility of the chosen geometry to create texture on the implant surface. 27 A focused laser beam is moved over the metal surface according to the desired geometry in laser texturing.…”

Section: Introductionmentioning

confidence: 99%

“…27 Regardless of the hardness of the material, the laser beam stands out with an increasing usage trend with the contribution of the versatility of the chosen geometry to create texture on the implant surface. 27 A focused laser beam is moved over the metal surface according to the desired geometry in laser texturing. Then, the evaporation mechanism removes an amount of material depending on the laser texturing parameters at the interaction zone.…”

Section: Introductionmentioning

confidence: 99%

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Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

Ozan,

Bilgin,

Kasman

2023

Proc Inst Mech Eng H

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Surface texturing with a laser beam is an effective method for engraving on the surface of biomaterials. The four laser texturing parameters (scan speed, frequency, fill spacing, and pulse width) having five different values were associated with five different scanning strategies (scan direction), and a total of 25 texturing conditions were tested on the Ti-6Al-7Nb alloy surface. The surface roughness and wettability of the textures created with a 20 W nanosecond fiber laser with a wavelength of 1064 nm on the surface of Ti-6Al-7Nb biocompatible alloy were investigated. Laser texturing parameters were analyzed according to the lowest surface roughness and a hydrophilic surface by creating L25 orthogonal arrays. The surface roughness values ranged between 2 and 26 µm. The lowest surface roughness with a value of 2.21 µm was achieved when the texture was processed with a frequency of 150 kHz, a fill spacing of 0.02 mm, a scan speed of 800 mm/s, a pulse width of 250 ns, and a cross-hatch strategy of 0°/90°. Considering the wettability test results, it was revealed that most of the textured surfaces have super hydrophilic and hydrophilic characteristics except the surface with a contact angle of 92.93°. The relevant surface was textured with 75 kHz frequency, 1000 mm/s scan speed, 0.05 mm fill spacing, 200 ns pulse width, and 45°/−45° cross-hatch strategy.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

Ozan,

Bilgin,

Kasman

2023

Proc Inst Mech Eng H

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“…As a result of the detailed examination of Figure 3, it was determined that there are cracks in different forms on the engraved surfaces. The occurrence of cracks during the laser engraving process is considered to be influenced by the non-uniform thermal stresses and the rapid cycles of melting and resolidification, as reported elsewhere [26][27][28]. Figure 4 depicts the representative images of the elemental mapping of engraved surfaces.…”

Section: Surface Topographymentioning

confidence: 96%

THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

Ozan

2024

Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi

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This investigation aims to analyze the impact of scanning direction, scanning speed, and power level (%) on the surface roughness of Ti-6Al-7Nb alloy specimens subjected to laser micro-engraving. The laser micro-engraving process was carried out by scanning the predetermined geometric configuration six times. Factorial analysis was implemented to determine the impact of system parameters on the surface roughness. Throughout the micro-engraving operations, line spacing, frequency, and pulse width parameters were maintained at a consistent value of 0.03 mm, 100 kHz, and 300 ns, respectively. The optimal conditions for achieving the lowest surface roughness were observed at a scanning speed of 700 mm/s, a power level of 60%, and a scanning direction of 90°. Moreover, in accordance with the experimental parameters employed in this investigation, it was observed that increasing the scanning speed while maintaining a constant power level (%) reduced surface roughness. There was a direct correlation between the increase in power level (%) and a corresponding increase in surface roughness.

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“…The striped-textured surface presents a multi-scale micro-nano structure. The formation of these dimples and protrusions increased the surface roughness of the samples [21].…”

Section: Analysis Of Wettability Transition Reasonsmentioning

confidence: 96%

Effect of Contact Angle on Friction Properties of Superhydrophobic Nickel Surface

Huang,

Zhu,

Zhang

et al. 2023

Photonics

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Due to their excellent performance, superhydrophobic materials have received a lot of attention and research in friction reduction and wear resistance. However, the effect of different contact angles of superhydrophobicity on friction and wear properties has not been thoroughly studied. In this paper, a nanosecond pulsed laser was used to realize the preparation of a superhydrophobic nickel surface, which indeed reduced the coefficient of friction but also increased the wear volume when compared to the unprocessed surface. As the contact angle of the superhydrophobic nickel surface increased, the coefficient of friction gradually increased, and the wear volume decreased gradually in superhydrophobic nickel surfaces. When the laser energy density was 1 J/cm2, the contact angle was 150.3° and the minimum friction coefficient was 0.4. However, when the laser energy density was 50 J/cm2, the maximum contact angle was 156.4° and the minimum wear volume was 4.23 × 107 μm3. The friction direction also influenced the tribological properties of the superhydrophobic-textured surface. This method makes it possible to process superhydrophobic surfaces with more suitable friction and wear properties.

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Investigation of laser surface texturing parameters of biomedical grade Co-Cr-Mo alloy

Cited by 9 publications

References 59 publications

Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

Effect of Contact Angle on Friction Properties of Superhydrophobic Nickel Surface

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