Laser surface textured titanium alloy (Ti–6Al–4V): Part 1 – Surface characterization

Pfleging, Wilhelm; Kumari, Renu; Besser, Heino; Scharnweber, Tim; Majumdar, Jyotsna Dutta

doi:10.1016/j.apsusc.2015.06.175

Cited by 96 publications

(41 citation statements)

References 37 publications

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“…Especially due to the letter aspect specimens treated by parameter set 3 show inferior properties. Focusing on the local timetemperature path during laser treatment, rapid heating and cooling of the specimen surfaces play a dominant role in microstructure evolution, as has been documented for laser-based processes in general [20,21,24,[30][31][32][33]. The key to improved resistance to short crack advance in the laser treated specimens in the current work seems to be the combination of the ultrafine-grained martensitic microstructure and the residual stress profile in the subsurface region.…”

Section: Impact Of Surface Condition and Microstructurementioning

confidence: 82%

“…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%

“…induced by selective laser 4 melting [33], deteriorate fatigue properties. Thus, all laser-assisted processes need to be carefully characterized with respect to beneficial or detrimental effects and stress states, respectively, generated by the strongly localized introduction of energy [30,34].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Section: Impact Of Surface Condition and Microstructurementioning

confidence: 82%

Section: Impact Of Surface Condition and Microstructurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Other researchers have investigated laser surface texturing of titanium alloys, regarding their biomedical use. They therefore focused mainly surface properties like wetting behavior and cell adhesion [9,10].…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior of nanosecond-laser surface textured Ti6Al4V

Kümmel

Hamann-Schroer

Hetzner

et al. 2019

Wear

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Titanium alloys are used due to their high specific strength and remarkable corrosion resistance. Their wear resistance however is poor, which in this paper is counteracted by laser surface texturing. Linear textures were created by the use of a nanosecond-pulsed laser, accompanied by melt bulges of resolidified material on the sides. Packing density, finishing procedure and atmosphere during laser texturing were varied between the experiments. Melt bulges lasered in air turned out to be tribologically beneficial in grease-lubricated sliding contact, reducing wear volume on Ti6Al4V significantly by up to a factor of 160, if a packing density of 5% or more was chosen. Further investigations of melt bulges with energy dispersive X-ray spectroscopy (EDX) and scanning transmission electron microscopy (STEM) revealed an increased content in interstitial oxygen and nitrogen and a purely martensitic α'-phase microstructure. Critical limitation of plastic deformation and a saturation of electronic bonds of the titanium atoms by interstitial elements is thought to be responsible for the reduction in adhesive tendency and therefore the pronounced decrease in wear.

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Biofouling and Corrosion Protection of Aluminum Alloys Through Ultrafast Laser Surface Texturing for Marine Applications

Cholkar,

Chatterjee,

Richards

et al. 2023

Adv Materials Inter

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Surface biofouling, corrosion, and wettability are important parameters to understand and characterize aluminum alloys to prevent the failure in marine environments. Antifouling technologies predominantly encompass chemical and biocidal approaches with negative environmental consequences. Therefore, this study focuses on a new method of producing non‐toxic and effective antifouling and corrosion‐resistant surfaces. In this study, ultrafast laser texturing is used to modify the surface of an aluminum alloy using a femtosecond laser system. Five different unique texture patterns are designed and fabricated using 3 W laser power, 100 kHz pulse repetition rate, and 4 mm s−1 scanning speed in order to make the aluminum surface antifouling and corrosion resistant. The non‐textured sample has a contact angle of 85° while the textured samples have contact angles of up to 157°. The contact angle increased with time up to 90 days of aging. Biofouling assessment is conducted using marine algae Nitzschia ovalis as a marine fouling test organism. A reduction of biofilm coverage of 79% is recorded from the laser‐produced star pattern texture. This study demonstrates that laser‐textured surfaces have the potential to mitigate the formation of biofilms on the surfaces while also providing a mechanism to control the relative level of corrosion.

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Laser surface textured titanium alloy (Ti–6Al–4V): Part 1 – Surface characterization

Cited by 96 publications

References 37 publications

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

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

Tribological behavior of nanosecond-laser surface textured Ti6Al4V

Biofouling and Corrosion Protection of Aluminum Alloys Through Ultrafast Laser Surface Texturing for Marine Applications

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