Construction and characterization of micro/nano-topography on titanium alloy formed by micro-milling and anodic oxidation

Wan, Yi; Wang, Teng; Wang, Zhongshan; Jin, Yifan; Wang, Qingqing

doi:10.1007/s00170-017-0323-0

Cited by 16 publications

(7 citation statements)

References 27 publications

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“…The optimum cutting parameters i.e. cutting speed (v) and feed rate per tooth (f t ) were selected as 9.5 m/min and 0.99 µm/ tooth, respectively as per the optimum range of data available in the open literature [9,10]. After machining the textures, the sample was ultrasonically cleaned for 20 min with distilled water, acetone, and ethanol.…”

Section: Fabrication Of Microtextures On Ti6al4v Surfacementioning

confidence: 99%

“…Mechanical micro milling has recently demonstrated its potential, exhibiting that it can overcome existing constraints and create directional microtextures of various shape, size, and density. Wan et al [9] formed hybrid micro/nanotextured surface on Ti alloy using the combination of mechanical micro milling and anodic oxidation. Jain et al [10] used mechanical micro milling techniques to fabricate micro conical dimple textured surfaces of different textures density on Ti6Al4V alloys.…”

Section: Introductionmentioning

confidence: 99%

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Alteration in Ti6Al4V implant surface properties with micro textures density

Jain

Bajpai

2022

Surface Engineering

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In lab-developed micro milling method was utilized to machine microtextures on Ti6Al4V alloy. Subsequently, the quality and geometry of the formed textures have been analysed and characterized. The functionality of textured surfaces has been assessed by performing wetting analysis concerning area surface roughness and roughness factor. The surface free energy of textured surfaces was computed via Owen and Wendt method, and Neumann's equation. Geometrically correct, defect-free, the machined textures are uniformly dispersed. The density of textures has enhanced the area surface roughness values of manufactured surfaces. Further, the wetting nature of fabricated surfaces is significantly altered. Heterogeneous bubble nucleation has been observed between the interface of solid surfaces and liquid droplets at high-density textured surfaces. The apparent surface free energy of textured surfaces varied with geometrical parameters. This study offers in-depth knowledge about the properties of textured Ti6Al4V implant surfaces.

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Section: Fabrication Of Microtextures On Ti6al4v Surfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alteration in Ti6Al4V implant surface properties with micro textures density

Jain

Bajpai

2022

Surface Engineering

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“…Microfabrication is capable of machining micron-scale structures of different sizes on the material surface, based on which micro-nano composite structures are obtained in combination with alkali heat treatment or anodic oxidation methods. Wan et al [10] sprayed a low-melting-point support material on the surface of a titanium alloy after microfabrication, and then used anodic oxidation to prepare TiO 2 nanotubes on the surface of the titanium alloy to obtain micro-nano composite structures.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Microstructure Laser Ablation and Multiple Acid-Etching Composites on the Surfaces of Medical Titanium Alloy TC4 by Laser Ablation and Multiple Acid-Etching, and Study of Frictional Properties of the Processed Surfaces

Chen

Zhao

et al. 2022

Metals

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In this paper, four array patterns were first designed by observing the structural features of the surface microstructures of pig bones and tree frog paws on the titanium alloy surface bionically. Then, the optimal parameters for laser processing were determined experimentally, and the optimized processing parameters were used to prepare micron-scale bumps on the titanium alloy surface and to investigate the relationship between the weaving height and the processing times. Finally, multiple acid etching was used to prepare nanoscale holes on the surface of the titanium alloy. It was found that the multiple acid etching could not only prepare nanoscale holes on the surface of the titanium alloy, but could also well eliminate the slag left on the surface of titanium alloy by laser ablation. Based on the above study, this paper also analyzed the effect of micro-nano structure on the friction properties of the titanium alloy surface from three aspects—theory, hardness test and friction coefficient test—and experimentally analyzed the effect of single-factor and multi-factor coupling of structural features on the friction properties of the titanium alloy surface. It was found that the optimal mean friction coefficient was 0.0902, corresponding to the characteristic values of 0.66 for the shape, 200 μm for the edge length and 60 μm for the height.

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“…Implants made of pure titanium or Ti6Al4V alloy, begin with conventional machining processes, such as turning and/or milling, which produce characteristic roughness and macro textures on the surface, allowing initial biological integration [9]. Micro-milling can create 3D textures to help cell adhesion, growth and proliferation, due to its characteristics [20]. However, there are still few studies relating feed per tooth and the influence of burrs on surface wettability, which is the first indication for good biological integration with human body, when applied to medical implants.…”

Section: Introductionmentioning

confidence: 99%

Tool Feed and Burr Size Influence on Wettability of Ti6Al4V Micro End-Milled

Ferreira

Martinelli

Rodrigues

et al. 2021

IJEMM

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Surface texturing, using micro-milling, has promising applications in the industry of medical implants, since it can assist cell adhesion and thus improve osseointegration. Ti6Al4V alloy is used as implant material due to its excellent biocompatibility and high mechanical strength. However, those mechanical properties reduce machinability creating some challenges for micro-milling. The way to initially assess cell adhesion is using surface wettability, usually conducted with water. At the present work, micro-channels were machined in Ti6Al4V by micro end-milling with 500 µm width per 50 µm depth with 1000 µm distant from each other. The effect of feed per tooth (fz) on wettability was analysed and some interesting relations with burrs formed on channel walls were obtained. Values of feed per tooth were 3, 6, 12 and 15 µm. Wettability results showed that slotted surface is more hydrophilic on channel direction, with contact angles around 30° to 43°. In contrast, on the perpendicular direction the surface tends to be hydrophobic with contact angles between 75° and 146°. In addition, contact angle increases (hydrophobic tendency) as feed per tooth increases (along with roughness), even on channel direction. The presence of burrs also tends to disturb wettability results. Therefore, surface wettability depends on channel direction, burr size and tool feed per tooth, as well.

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Construction and characterization of micro/nano-topography on titanium alloy formed by micro-milling and anodic oxidation

Cited by 16 publications

References 27 publications

Alteration in Ti6Al4V implant surface properties with micro textures density

Alteration in Ti6Al4V implant surface properties with micro textures density

Preparation of Microstructure Laser Ablation and Multiple Acid-Etching Composites on the Surfaces of Medical Titanium Alloy TC4 by Laser Ablation and Multiple Acid-Etching, and Study of Frictional Properties of the Processed Surfaces

Tool Feed and Burr Size Influence on Wettability of Ti6Al4V Micro End-Milled

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