Coloring of titanium through laser oxidation: comparative study with anodizing

Pino, A. Pérez del; Fernández-Pradas, J.M.; Serra, P.; Morenza, J.L.

doi:10.1016/j.surfcoat.2004.02.001

Cited by 118 publications

(54 citation statements)

References 24 publications

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“…In this aspect, in accordance with Perez del Pino et al [15,16], it has been detected that, for treatments that involve higher thicknesses of modified layers corresponding to lower E d and V s , there is a tendency towards bluish and grayish to dark brown color tonalities. On the other hand, by increasing V s and/or reducing E d , developing modified layers with lower thickness, light brown to golden color tonalities textures are generated.…”

Section: Laser Textured Specimens: Chromatic Variabilitysupporting

confidence: 81%

“…This feature results in a relatively clean and precise process, due to an excellent control over the heat absorption on the affected area, and the possibility of focusing the laser beam on small areas of the surface. The exposure of Ti6Al4V alloy to radiation treatments by laser techniques in an air atmosphere causes the combination of the external surface layer with the oxygen present in ambient air, promoted by the temperature increase generated in the radiation process [14][15][16][17]. Such a combination results in the development of a thin protective layer, mainly composed of titanium oxides, with rutile (TiO 2 ) being the predominant form [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…The exposure of Ti6Al4V alloy to radiation treatments by laser techniques in an air atmosphere causes the combination of the external surface layer with the oxygen present in ambient air, promoted by the temperature increase generated in the radiation process [14][15][16][17]. Such a combination results in the development of a thin protective layer, mainly composed of titanium oxides, with rutile (TiO 2 ) being the predominant form [15][16][17]. A range of several tonalities is shown according to variables such as the thickness and microstructure of the oxidation layer [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Such a combination results in the development of a thin protective layer, mainly composed of titanium oxides, with rutile (TiO 2 ) being the predominant form [15][16][17]. A range of several tonalities is shown according to variables such as the thickness and microstructure of the oxidation layer [15][16][17]. With the aim of ensuring the quality of results, metrological procedures are required to evaluate the dimensions of the grooves created by surface laser texturing [18].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

Salguero

Batista

et al. 2017

Coatings

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Surface engineering is widely used in different areas, such as the aerospace industry or the biomechanical and medical fields. Specifically, laser surface modification techniques may obtain specific surface finishes for special applications. In texturing laser procedures, the control of processing parameters has a great influence on the geometry and characteristics of the treated area. When these processes are carried out on titanium alloys, thin oxide layers are usually developed on the irradiated surface, formed through the thermochemical combination of vaporized material with atmospheric oxygen in the air. In thermal oxidation treatments of Ti6Al4V, the highest concentration of oxides is mainly composed by rutile (TiO 2 ), producing surface property modifications such as hardness, among others. In this research, a thermochemical oxidation of Ti6Al4V alloy has been performed through laser texturing, using laser scanning speed (V s ) and pulse rate (f ) as process control variables, and its influence on the beam absorption capacity of the modified layer have been analyzed. Combined evaluations of microgeometrical features and mechanical properties, such as hardness, verified that, by means of laser texturing treatments, the ability to generate specific topographies and increase the initial hardness of the alloy is obtained. The most advantageous results for the increase of hardness by thermochemical oxidation have been detected in low scan speeds of laser beam treatments, resulting in an increase of approximately 270% using a scanning speed of 10 mm/s. On the other hand, a dependence between roughness values, in terms of R a and R z , and the energy density of pulse (E d ) has been observed, showing higher values of roughness for a 17.68 J/cm 2 energy density of pulse.

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Section: Laser Textured Specimens: Chromatic Variabilitysupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

Salguero

Batista

et al. 2017

Coatings

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“…Various techniques can be used to obtain a titanium oxide coating: cathodic deposition [9], plasma deposition [10], laser deposition [11], magnetron sputtering [12], thermal oxidation [13], electrolytic oxidation (anodizing) [7,14], and laser oxidation [8,14,15].…”

Section: Introductionmentioning

confidence: 99%

The influence of process parameters on the laser-induced coloring of titanium

et al. 2013

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This paper presents the results of the measurements and analysis of the influence of laser process parameters on the color obtained. The study was conducted for titanium (Grade 2) using a commercially available industrial pulsed fiber laser. It was determined how a variety of different laser process parameters, such as laser power, the scanning speed of the material, the temperature of the material, the size of the marked area, and the position of the sample, relative to both the focal plane and the center of the working field of the system, affect the repeatability of the colors created. For an objective assessment of color changes, an optical spectrometer and the CIE color difference parameter E * ab were used. Our paper explains why the tolerance of process parameters highly depends on the specific color. Additionally, a comparison of the results for titanium with those obtained for stainless steel in a previous study is presented. Based on this analysis, a number of necessary modifications are proposed to laser systems commonly used for monochrome marking in order to improve repeatability in color marking.

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Magnesium Corrosion Triggered Spontaneous Generation of H₂O₂ on Oxidized Titanium for Promoting Angiogenesis

Park

Jeon

et al. 2015

Angewandte Chemie

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Although the use of reactive oxygen species (ROS) has been extensively studied, current systems employe xternal stimuli such as light or electrical energy to produce ROS,which limits their practical usage.Inthis report, biocompatible metals were used to construct anovel electrochemical system that can spontaneously generate H 2 O 2 without any external light or voltage.T he corrosion of Mg transfers electrons to Audecorated oxidized Ti in an energetically favorable process, and the spontaneous generation of H 2 O 2 in an oxygen reduction reaction was revealed to occur at titanium by combined spectroscopic and electrochemical analyses.T he controlled release of H 2 O 2 noticeably enhanced in vitro angiogenesis even in the absence of growth factors.F inally,an ew titanium implant prototype was developed by Mg incorporation, and its potential for promoting angiogenesis was demonstrated.

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Coloring of titanium through laser oxidation: comparative study with anodizing

Cited by 118 publications

References 24 publications

Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

The influence of process parameters on the laser-induced coloring of titanium

Magnesium Corrosion Triggered Spontaneous Generation of H₂O₂ on Oxidized Titanium for Promoting Angiogenesis

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Coloring of titanium through laser oxidation: comparative study with anodizing

Cited by 118 publications

References 24 publications

Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

Effects of Laser Processing Parameters on Texturized Layer Development and Surface Features of Ti6Al4V Alloy Samples

The influence of process parameters on the laser-induced coloring of titanium

Magnesium Corrosion Triggered Spontaneous Generation of H2O2 on Oxidized Titanium for Promoting Angiogenesis

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Product

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About

Magnesium Corrosion Triggered Spontaneous Generation of H₂O₂ on Oxidized Titanium for Promoting Angiogenesis