Tribological behaviour of alumina sliding against Ti6Al4V in unlubricated contact

Dong, Hanshan; Bell, T.

doi:10.1016/s0043-1648(98)00407-4

Cited by 100 publications

(70 citation statements)

References 21 publications

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“…The proposed model results have been compared with the experimental wear data obtained with Al 2 O 3 /steel [18], WC-TiCCo/steel [19] and TiB 2 -MoSi 2 /steel [20], Ti6Al4V/alumina [33] and ASP23 steel/alumina [34] tribocouples, where oxidative wear has been reported during fretting wear experiments in earlier studies. In first three tribocouples, the flat ceramic discs were fretted against steel balls, while for the last two tribocouples the metallic flat was fretted against a ceramic ball.…”

Section: Validation Methodologymentioning

confidence: 98%

“…The value of pre-exponential constant (k 0 ) for the oxidation of carbon steel [36] and Ti6Al4V [37] (Table 2) was extracted from the parabolic rate constants measured in the temperature range of 773-973 K and 1050-1340 K respectively. Fe 2 O 3 and TiO 2 have been reported to be the major oxidation products [18,33] of steel and Ti6Al4V respectively; hence their theoretical densities were taken for the calculations. Since the exact value of critical oxide layer thickness for various metal oxides of the present case was not available, a minimum critical oxide layer thickness of 1 nm was assumed as suggested by Fisher [24].…”

Section: Validation Methodologymentioning

confidence: 99%

“…Archard's model for the flash temperature calculation has been used for the formulation in the present case, which gives a specific expression for wear volume in terms of load and other parameters. Although the exponential dependence of the wear volume on the load has been verified for all the cases, the expression inside the exponential part can be different, depending on the [34], and (e) Ti6Al4V/alumina [33]. P is the normal load in N applied during the fretting tests, V 0 is the tribomechanical wear volume (mm use of a specific theoretical model for the flash temperature estimation.…”

Section: Tablementioning

confidence: 96%

“…Ti6Al4V/alumina [33]: The wear tests were performed using a ball-on-disc configuration in ambient conditions. High purity 99.5% commercially available a-alumina balls of 8 mm diameter and 16.5 GPa hardness were fretted against a Ti6Al4V disc (hardness 3.5 GPa).…”

Section: Acknowledgementsmentioning

confidence: 99%

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Load dependence of oxidative wear in metal/ceramic tribocouples in fretting environment

Tewari

2012

Wear

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a b s t r a c tFor a large number of non-oxide ceramic/metal as well as for non-oxide particulate reinforced composite/metal tribocouples, oxidative wear is reported to play a major role in the overall damage and material removal process. The designing of new materials with improved resistance to oxidative wear requires understanding of the combined effect of the material properties and operating parameters on the wear resistance. In this paper, an analytical model to predict the dependence of the oxidative wear volume on load and sliding velocity is presented. The model is developed using basic chemical kinetics and Hertzian contact mechanics, and is valid for the case of a stable oxide layer. Exponential dependence of wear volume on operating parameters (load, sliding velocity) is predicted in the proposed model. It has been shown to successfully explain the qualitative experimental load dependence of the wear volume for five ceramic/metal tribocouples (Al 2 O 3 /steel, WC-TiC-Co/steel, TiB 2 -MoSi 2 /steel, ASP23 steel/alumina and Ti6Al4V/alumina) that exhibit oxidative wear. The activation energy of the oxidation of metallic counter bodies under fretting conditions was also calculated using the model, which turns out to be significantly lower than in the static conditions.

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Section: Validation Methodologymentioning

confidence: 98%

Section: Validation Methodologymentioning

confidence: 99%

Section: Tablementioning

confidence: 96%

Section: Acknowledgementsmentioning

confidence: 99%

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Load dependence of oxidative wear in metal/ceramic tribocouples in fretting environment

Tewari

2012

Wear

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“…On the basis of this review, these authors have concluded that the tribological behaviour of Ti-6Al-4V alloys undergoing dry sliding wear should be independently optimized through investigations of the surface behaviour and subsurface behaviour. Dong and Bell [7], while presenting an overview on the microstructural evolution during dry sliding wear, has concluded that all of the observed microstructural features are controlled by a few basic processes such as plastic deformation, transfer, interactions with the environment and mechanical mixing. Ohidul Alam and Haseeb [8] observed that the formation of a protective oxide layer during wear results in a much lower wear rate.…”

Section: Introductionmentioning

confidence: 99%

Correlation between the characteristics of the thermo-mechanical mixed layer and wear behaviour of Ti–6Al–4V alloy

et al. 2006

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The sliding friction and wear behaviours of Ti-6Al-4V alloy were investigated under dry sliding wear conditions. The wear tests were carried out on a pin-disc tribometer at sliding speeds from 30 m/s to 70 m/s and at contact pressure ranging from 0.33 MPa to 1.33 MPa. Pins of the Ti-6Al-4V alloy are used in both solution treated and aged conditions. The objective of the study is to understand the influence of thermo-mechanical mixed layers (TMML), which form on the surface of the worn material during the course of the wear test, on the friction and wear behaviour. Detailed characterization of the TMML was carried out using SEM, EDS and micro-hardness testing in order to understand the influence of test velocity and contact pressure on the composition, hardness and thickness of the TMML formed. The influence of the TMML on the friction and wear behaviour was also studied. On the basis of the above characterization, it was demonstrated that the observed friction and wear behaviour of Ti-6Al-4V alloy can be best understood in terms of the formation and fracture rate of the TMML rather than the bulk properties of the material.

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A Comparative Review of Surface Modification Technique Between Physical Vapor Deposition (PVD) and Plasma Electrolytic Oxidation (PEO) for Biomedical Applications

Ahmed¹,

Ahmad²,

Abdul-Rani³

et al. 2022

Lecture Notes in Mechanical Engineering

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Tribological behaviour of alumina sliding against Ti6Al4V in unlubricated contact

Cited by 100 publications

References 21 publications

Load dependence of oxidative wear in metal/ceramic tribocouples in fretting environment

Load dependence of oxidative wear in metal/ceramic tribocouples in fretting environment

Correlation between the characteristics of the thermo-mechanical mixed layer and wear behaviour of Ti–6Al–4V alloy

A Comparative Review of Surface Modification Technique Between Physical Vapor Deposition (PVD) and Plasma Electrolytic Oxidation (PEO) for Biomedical Applications

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