Wear and Corrosion Characterization of a Ti–6Al–4V Component for Automotive Applications: Forging versus Selective Laser Melting Technologies

Cecchel, Silvia; Montesano, Lorenzo; Cornacchia, Giovanna

doi:10.1002/adem.202200082

Cited by 10 publications

(7 citation statements)

References 48 publications

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“…The good mechanical strength, low density, excellent corrosion resistance and biocompatibility of titanium alloys make them ideal candidates for aerospace [1,2], automotive [3,4] and biomedical applications [5,6]. Nevertheless, the poor tribological properties of these alloys are a major drawback to their application.…”

Section: Introductionmentioning

confidence: 99%

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Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Gaikwad

Salguero

et al. 2022

Lubricants

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The loss of energy due to friction is one of the major problems industries are facing nowadays. Friction and wear between sliding components reduce the mechanical efficiency of machines and have a negative impact on the environment. In recent years, surface texturing has shown tremendous ability to reduce friction and wear. Micro-features generated on surfaces act as a secondary reservoir for lubricants and wear debris receptacles to further reduce abrasion. In addition, surface texturing boosts hydrodynamic pressure, which increases the elasto-hydrodynamic lubrication regime of the Stribeck curve, reducing friction and wear. Amongst all different techniques to texture surfaces, laser texturing is the most popular due to its advantages such as high accuracy, good consistency and celerity as compared to other techniques. This study investigated the effect of laser texturing on the tribological properties of Ti6Al4V in contact with a ceramic ball. The effect of varying the dimple density on friction and wear was studied using a ball-on-flat reciprocating tribometer under lubricated conditions. Results show that friction and wear were reduced for all the textured samples as compared to an untextured sample, with important friction and wear reductions for the samples with the highest dimple densities. For samples with intermediate dimple densities, the friction coefficient stayed low until the dimples wore out from the surface and then increased to a value similar to the friction coefficient of the untextured surface. The dimple wear-out time observed in these specimens was greatly influenced by the dimple density.

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Section: Introductionmentioning

confidence: 99%

“…Furthermore, wear is behind a large proportion of mechanical failures [12]. Globally, energy consumed due to friction and wear in industries is around 103 EJ and 16 EJ, respectively [2,3]. In the transportation industry, for example, friction consumes almost 60% of the energy produced [7].…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Gaikwad

Salguero

et al. 2022

Lubricants

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“…Laser manufacturing technology has the advantages of high processing rate, superior machining precision, and extraordinary surface quality over traditional manufacturing methods [ 14 ]. With the development of laser manufacturing technology, laser surface modification, including laser shock strengthening [ 15 ], laser melting [ 16 ], laser deposition [ 17 , 18 ], and laser alloying [ 19 , 20 ], has attracted widespread attention in the field of Ti alloy surface technology. Among them, laser alloying technology is widely used for its advantages of fast heating speed, small heat-effected zone, tight bonding between coating and substrate, low deformation of the workpiece, and a high degree of automation [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano Nd2O3 on the Microstructure and High-Temperature Resistance of G@Ni Laser Alloying Coatings on Ti-6Al-4V Alloy

Wang

Meng

Zhao³

et al. 2023

Nanomaterials

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Titanium and its alloys are widely used in high-end manufacturing fields. However, their low high-temperature oxidation resistance has limited their further application. Recently, laser alloying processing has attracted researchers to improve the surface properties of Ti, for which Ni coated graphite system is an excellent prospect due to its outstanding properties and metallurgical bonding between coating and substrate. In this paper, nanoscaled rare earth oxide Nd2O3 addition was added to Ni coated graphite laser alloying materials to research its influence on the microstructure and high-temperature oxidation resistance of the coating. The results proved that nano-Nd2O3 has an outstanding effect on refining coating microstructures, thus the high-temperature oxidation resistance was improved. Furthermore, with the addition of 1. 5 wt.% nano-Nd2O3, more NiO formed in the oxide film, which effectively strengthened the protective effect of the film. After 100 h of 800 °C oxidation, the oxidation weight gain per unit area of the normal coating was 14.571 mg/cm2, while that of the coating with nano-Nd2O3 addition was 6.244 mg/cm2, further proving that the addition of nano-Nd2O3 substantially improved the high-temperature oxidation properties of the coating.

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“…[10,11] Additionally, SLM imparts superior mechanical properties and corrosion resistance to processed materials by creating multiscale heterogeneous microstructures ranging from a few nanometers to hundreds of micrometers. [12][13][14][15][16] With the above advantages, the preparation of M/HEAs by SLM has been gradually studied.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance Enhancement of Selective Laser Melted Cost‐Effective Interstitial Medium‐Entropy Alloy via Deep Cryogenic Treatment

Zhou

Sangbong

et al. 2023

Adv Eng Mater

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An economically interstitial FeMnCrNiCu medium‐entropy alloy (MEA), which exhibits preferable corrosion resistance in 3.5 wt% NaCl solution, is fabricated by selective laser melting (SLM). Compared with annealing, which is one of the posttreatments for additive manufacturing, deep cryogenic treatment (DCT) also contributes significantly to the alloy properties and is expected to improve corrosion resistance. Herein, the corrosion behavior of SLM‐MEA after DCT in 3.5 wt% NaCl solution is investigated. DCT improves corrosion resistance by promoting the uniform distribution of precipitates in SLM‐MEA and changing the cation ratio in the passive film. After DCT, the corrosion current density of the SLM‐MEA in original and annealed state decreases by 27.07% and 62.69%, respectively. The annealed SLM‐MEA exhibits the worst corrosion resistance as a result of the precipitation of continuous Cr‐rich M23C6 carbides at grain boundaries. The face‐centered cubic structure of MEA does not change after annealing or DCT. Significantly, the number, size, and distribution of the precipitates are greatly affected. DCT after annealing promotes the uniform diffuse distribution of M23C6 carbides and nanoscale Cu‐rich particles while increasing the Cr+Ni/Fe+Mn ratio in the passive film, resulting in a significant improvement in corrosion resistance.

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Wear and Corrosion Characterization of a Ti–6Al–4V Component for Automotive Applications: Forging versus Selective Laser Melting Technologies

Cited by 10 publications

References 48 publications

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Effect of Nano Nd2O3 on the Microstructure and High-Temperature Resistance of G@Ni Laser Alloying Coatings on Ti-6Al-4V Alloy

Corrosion Resistance Enhancement of Selective Laser Melted Cost‐Effective Interstitial Medium‐Entropy Alloy via Deep Cryogenic Treatment

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