Structural transformation and residual stresses in surface layers of α + β titanium alloys nanotextured by femtosecond laser pulses

Kolobov, Yu. R.; Голосов, Е. В.; Vershinina, T. N.; Жидков, М. В.; Ионин, А. А.; Kudryashov, S. I.; Макаров, С. В.; Селезнев, Л. В.; Sinitsyn, D. V.; Ligachev, A. E.

doi:10.1007/s00339-014-8954-6

Cited by 36 publications

(14 citation statements)

References 32 publications

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“…It could be demonstrated, that the osteoblasts adhered tightly, especially to the two investigated FLIPSS-structured surfaces, and it was found that the spreading was superior on these surfaces. The findings of this cell study can be used in conjunction with the current study for tailoring of Ti6Al4V implant surfaces with improved cell behavior It is reported in the literature, fs laser treatment affects the crystallographic, chemical, and mechanical properties of the sublayer on the surface in a range of several hundreds of nanometers [60][61][62] and, consequently, the implant performance. Therefore, further research should focus on the effect of laser treatment parameters on the dimension and properties of the heat affected zone (HAZ) and internal structure in the nano-and microstructures on Ti6Al4V, such as layer thickness, grain size and growth within the layer, and derived mechanical properties.…”

Section: It Can Be Deduced Frommentioning

confidence: 70%

Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces

2020

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Surface structuring is a key factor for the tailoring of proper cell attachment and the improvement of the bone-implant interface anchorage. Femtosecond laser machining is especially suited to the structuring of implants due to the possibility of creating surfaces with a wide variety of nano- and microstructures. To achieve a desired surface topography, different laser structuring parameters can be adjusted. The scanning strategy, or rather the laser pulse overlap and scanning line overlap, affect the surface topography in an essential way, which is demonstrated in this study. Ti6Al4V samples were structured using a 300 fs laser source with a wavelength of 1030 nm. Laser pulse overlap and scanning line overlap were varied between 40% and 90% over a wide range of fluences (F from 0.49 to 12.28 J/cm²), respectively. Four different main types of surface structures were obtained depending on the applied laser parameters: femtosecond laser-induced periodic surface structures (FLIPSS), micrometric ripples (MR), micro-craters, and pillared microstructures. It could also be demonstrated that the exceedance of the strong ablation threshold of Ti6Al4V strongly depends on the scanning strategy. The formation of microstructures can be achieved at lower levels of laser pulse overlap compared to the corresponding value of scanning line overlap due to higher heat accumulation in the irradiated area during laser machining.

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Section: It Can Be Deduced Frommentioning

confidence: 70%

Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces

2020

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“…It is well known that Ti-6Al-4V is very sensitive to residual stresses, grain refinement and nano-as well as micro-roughness [16,[26][27][28][29][30][31][51][52][53]. Especially due to the letter aspect specimens treated by parameter set 3 show inferior properties.…”

Section: Impact Of Surface Condition and Microstructurementioning

confidence: 99%

“…Removal of contamination from the surface [25], residual stresses, grain refinement and nano-as well as micro-roughness have been the focus of recent studies [16,[26][27][28][29][30][31]. In the last decade, various authors have shown that the surface and the mechanical properties of metals and alloys can be positively influenced by laser shock peening [24,31,32].…”

Section: Introductionmentioning

confidence: 99%

Influence of surface pre-treatments on the high-cycle fatigue behavior of Ti–6Al–4V – From anodizing to laser-assisted techniques

Taube

Kurtović

Niendorf

et al. 2016

International Journal of Fatigue

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“…Scanning electron microscope (SEM), atomic force microscope (AFM) and laser scanning confocal microscope (LSCM) are often used to observe the geometrical characteristics of surface texture [ 82 , 83 , 84 ]. Additionally, some researchers have paid attention to the residual stresses in surface layers on the textured surfaces [ 85 , 86 ].…”

Section: Surface Texture-based Surface Treatments With Improved Pementioning

confidence: 99%

Surface Texture-Based Surface Treatments on Ti6Al4V Titanium Alloys for Tribological and Biological Applications: A Mini Review

Lin

Zou

et al. 2018

Materials

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Surface texture (ST) has been confirmed as an effective and economical surface treatment technique that can be applied to a great range of materials and presents growing interests in various engineering fields. Ti6Al4V which is the most frequently and successfully used titanium alloy has long been restricted in tribological-related operations due to the shortcomings of low surface hardness, high friction coefficient, and poor abrasive wear resistance. Ti6Al4V has benefited from surface texture-based surface treatments over the last decade. This review begins with a brief introduction, analysis approaches, and processing methods of surface texture. The specific applications of the surface texture-based surface treatments for improving surface performance of Ti6Al4V are thoroughly reviewed from the point of view of tribology and biology.

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Structural transformation and residual stresses in surface layers of α + β titanium alloys nanotextured by femtosecond laser pulses

Cited by 36 publications

References 32 publications

Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces

Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces

Influence of surface pre-treatments on the high-cycle fatigue behavior of Ti–6Al–4V – From anodizing to laser-assisted techniques

Surface Texture-Based Surface Treatments on Ti6Al4V Titanium Alloys for Tribological and Biological Applications: A Mini Review

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