Effect of laser parameters on the tribological behavior of Ti6Al4V titanium microtextures under lubricated conditions

Salguero, Jorge; Sol, Irene Del; Salguero, Jorge; Schertzer, Michael J.; Iglesias, Patricia

doi:10.1016/j.wear.2018.12.029

Cited by 31 publications

(22 citation statements)

References 35 publications

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“…The popularity of these materials results from their high yield strength to tensile strength ratio (R p0.2 /R m ), low density, excellent corrosion resistance and the best, compared with other metallic biomaterials, biocompatibility [ 1 , 2 , 3 , 4 , 5 , 6 ]. However, despite their unquestionable advantages, these materials have poor tribological properties, which limits their use in friction couples [ 7 , 8 ]. The main problem in technical applications of titanium and its alloys is a high coefficient of friction and a tendency to adhesive wear, which leads to failures at an early stage of operation [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

The Tensile Properties, Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2

et al. 2020

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The tensile properties, scratch behaviors and sliding wear of an oxide scale obtained on the surface of titanium Grade 2 in the process of isothermal oxidation at 600, 700 and 800 °C were determined in the study. It was shown that the intensity of the oxidation process increased along with an increase in temperature and extension of the oxidation time, which translated directly into the thickness of the deposited oxide layers. The tests showed that isothermal oxidation had an adverse effect on the tensile properties of titanium. After oxidation, it was found that the maximum reduction in tensile strength, Rm, was approximately 17.5%, and of the yield point, Rp0.2, approximately 13.9%. Examination of scratch behaviors of the oxide scale showed that the layers obtained at temperatures of 700 (72 h) and 800 °C (2 and 6 h) had the best adhesion properties. The best resistance to scratching was exhibited by the layer obtained after 6 h oxidation at 800 °C (critical load: Lc1 = 63 N, Lc2 = 85 N). The study showed that after oxidation, a considerable reduction in wear factor of a disc made of titanium Grade 2 was observed for both the friction couples used (Al2O3, steel 100Cr6). The maximum reduction in wear factor of the oxidized titanium disc during interaction with Al2O3 balls was ca. 79%, and with 100Cr6 balls, ca. 96%.

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Section: Introductionmentioning

confidence: 99%

The Tensile Properties, Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2

et al. 2020

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“…Extremely high energy density at the surface of the processed object offered by lasers allows for the treatment of any material, even ceramics. Innovative surface treatments such as laser texturing can be applied to ceramic coatings (Al 2 O 3 –13%TiO 2 ) [ 2 ] on steel substrate, and also Ti6Al4V alloy [ 3 , 4 ]. Results indicate markedly improved tribological performance characterized by changes in the roughness and structure.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders

2020

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In this paper, results of the experimental study on improving wear resistance in sliding friction of Al-based alloy are presented. The technique used involves the formation of a metal matrix composite (MMC) in the alloy surface layer by laser dispersion of carbide powders such as WC, TiC and SiC. For WC and TiC MMC surface coatings fabricated under conditions typical for most of the technologically relevant solid-state lasers (wavelength range of 0.8–1.1 μm), the nearly inversely proportional dependence of the required laser energy density on the powder mass density is observed. Highly homogenous distribution of powder particle content (up to 40%) in the MMC surface coatings of a thickness between 0.8 and 1.6 mm obtained by multiple scanning is observed in the cross-section of specimens processed within a rather narrow parameter window. Tribological tests and comparison to untreated material reveal wear resistance increases by five- and ten-fold, observed in samples with laser-dispersed TiC and WC powders, respectively. Results indicate that substantial modification and reinforcement of the surface layer can be achieved in Al alloy in a one-step process without substrate preheating.

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“…A great value for this latter parameter is a restraint on the potential application of the high-speed milling technique. Salguero J, Del Sol I, Vazquez-Martinez J M, et al [8] studied the effect of laser-textured surfaces on the tribological behavior of titanium alloy Ti6Al4V. First, the characterization of dimensional and geometrical features of the texturized tracks was carried out.…”

Section: Introductionmentioning

confidence: 99%

Anti-Friction and Anti-Wear Mechanisms of Micro Textures and Optimal Area Proportion in the End Milling of Ti6Al4V Alloy

Tong¹,

Liu²,

Shen³

2019

JMMP

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To solve the problems of low efficiency, poor surface quality, and short tool life in the milling of titanium alloys, this study took the micro-textured ball-end milling tool as a starting point and established a platform for friction and wear tests. Based on a new method of external friction theory, the anti-friction and anti-wear mechanisms of the micro-textured tool were analyzed. According to these mechanisms, the optimal area proportion of the micro textures in the contact area between the chip and tool was theoretically investigated considering the milling force, and the proportion was verified experimentally. This work provides a reference for improving the cutting performance of hard metal tools.

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Effect of laser parameters on the tribological behavior of Ti6Al4V titanium microtextures under lubricated conditions

Cited by 31 publications

References 35 publications

The Tensile Properties, Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2

The Tensile Properties, Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2

Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders

Anti-Friction and Anti-Wear Mechanisms of Micro Textures and Optimal Area Proportion in the End Milling of Ti6Al4V Alloy

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