Tribocorrosion behaviour of Ti6Al4V under various normal loads in phosphate buffered saline solution

Yazdi, R.; Ghasemi, H.M.; Abedini, M.; Wang, C.; Neville, Anne

doi:10.1016/s1003-6326(20)65297-9

Cited by 15 publications

(11 citation statements)

References 50 publications

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“…This necessitates a need for further research to be conducted around the effect of normal force (and subsequent changes in the material properties) on the tribocorrosion of Ti-6Al-4 V alloy. Yazdi et al [29] also observed a shift in OCP towards negative potentials by increasing the level of normal force. This finding has been also reported by Mardare et al [6].…”

Section: Introductionmentioning

confidence: 89%

“…In addition, there is a controversy in the literature that under certain circumstances, the total loss in the cathodic domain cannot be assumed as purely mechanical since the wear characteristics of the interface are altered by hydrogen segregation and interface embrittlement [41]. However, it is still common to assume this total loss as being mechanical, as detailed and used by other researchers in the literature [10, 13,29,35,42]. Therefore, taking into account this concept, this study assumed the total loss in the cathodic domain as mechanical.…”

Section: Materials Volume Loss and Hardness Measurementsmentioning

confidence: 99%

“…Therefore, most of the previous studies have investigated tribocorrosion under low sliding frequencies [26,27]. In addition to the sliding frequency, normal force at the interface is another important mechanical parameter which can influence the tribocorrosion damage [28,29]. This parameter affects both the volume loss from the substrate; and also, the oxidation rate.…”

Section: Introductionmentioning

confidence: 99%

“…This parameter affects both the volume loss from the substrate; and also, the oxidation rate. Previous papers report a direct relationship between the normal force (contact pressure) and total material loss in the tribocorrosion of Ti-6Al-4 V and other metal alloys [5,7,29,30]. Yazdi et al [29] found a reduction in the "specific tribocorrosion rate (STR)" (defined as the rate of material removal divided by corresponding normal force) with an increase in the normal force.…”

Section: Introductionmentioning

confidence: 99%

“…Previous papers report a direct relationship between the normal force (contact pressure) and total material loss in the tribocorrosion of Ti-6Al-4 V and other metal alloys [5,7,29,30]. Yazdi et al [29] found a reduction in the "specific tribocorrosion rate (STR)" (defined as the rate of material removal divided by corresponding normal force) with an increase in the normal force. This decrease was believed to be because of the higher coverage of the oxide layer and a decrease in adhesion between the mating surfaces.…”

Section: Introductionmentioning

confidence: 99%

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The Tribocorrosion Behaviour of Ti-6Al-4 V Alloy: The Role of Both Normal Force and Electrochemical Potential

et al. 2022

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The tribocorrosion behaviour of Ti-6Al-4 V exposed to phosphate buffered saline was investigated under a range of normal forces in both cathodic and anodic regions to provide a basis for properly deriving the tribological constants of this alloy. To achieve this, a new customised tribotester was designed and manufactured to rub the Ti-6Al-4 V disks against zirconia balls. The tests were conducted at a sliding frequency of 1 Hz and a sliding distance of 4.8 mm under various normal forces and potentials as 17.5, 10.8, 6, 3.5 N, and − 1.2, − 0.6, 0, 0.4, 0.8 V/VAg/AgCl, respectively. The damaged surfaces were characterised by scanning electron microscopy and energy-dispersive X-ray spectroscopy, profilometer, and micro-hardness tester. The post analyses confirmed the appearance of some minor cracks together with third-body wear particles. No significant changes in the hardness were detected after the tribocorrosion tests. The results of profilometry and electrochemical current indicated that in the anodic region the chemical losses accounted for a significant proportion (up to 36%) of the total loss. The proportional chemical loss increased with the potential; however, neither direct nor reverse relationship was found with the normal force. Overall, in the anodic domain, the material loss increased with the potential level due to the formation of oxide layer which may induce more shear cutting. In the cathodic domain, hydrogen embrittlement changed the properties of the interface and thus, the amount of material loss. Both the mechanical and chemical wear were described by an existing tribocorrosion theory; thereby, the theory was equipped with its tribocorrosive constants for future analyses on the tribocorrosion of this alloy extensively used in various applications including biomedical implants.

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Section: Introductionmentioning

confidence: 89%

Section: Materials Volume Loss and Hardness Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Tribocorrosion Behaviour of Ti-6Al-4 V Alloy: The Role of Both Normal Force and Electrochemical Potential

et al. 2022

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Structural, Mechanical and Tribological Properties of Hydroxiapatite Reinforced Ti13Nb13Zr/HA Composite Produced by Friction Stir Process (FSP)

ACIMERT,

Okur,

Dayauç

et al. 2024

Metall Mater Trans B

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Many modification methods are applied to produce Ti-based biomedical materials. In this study, the structural, mechanical and tribological properties of unreinforced Ti13Nb13Zr alloy and Ti13Nb13Zr/HA composites with different contents of hydroxyapatite (HA) reinforcement were investigated by friction stir processing (FSP) to Ti13Nb13Zr alloy. SEM, FTIR and EDS analyzes were performed to determine the structural properties. Surface roughness values were determined using a 3D optical microscope. Surface wettability properties were investigated with a contact angle. Microhardness and wear test devices were used to determine the mechanical and tribological properties, respectively. Wear tests were carried out in a dry environment and phosphate buffered saline solution (PBS). The wear tracks were analyzed by SEM and 3D optical microscope. As a result of FTIR analysis, HA has PO43−, HPO42−, CO32− and OH− bonds. All samples exhibited hydrophilic surfaces suitable for cell adhesion. The FSP process increased the hardness and wear resistance of the Ti13Nb13Zr alloy in both atmospheres. In addition, Ti13Nb13Zr/HA composites significantly increased the hardness and wear resistance of Ti13Nb13Zr alloy and Ti13Nb13Zr alloy modified by FSP.

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Recent approaches to limit the tribocorrosion of biomaterials: A review

Shahini

Mohammadloo

Ramezanzadeh

2022

Biomass Conv. Bioref.

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Tribocorrosion behaviour of Ti6Al4V under various normal loads in phosphate buffered saline solution

Cited by 15 publications

References 50 publications

The Tribocorrosion Behaviour of Ti-6Al-4 V Alloy: The Role of Both Normal Force and Electrochemical Potential

The Tribocorrosion Behaviour of Ti-6Al-4 V Alloy: The Role of Both Normal Force and Electrochemical Potential

Structural, Mechanical and Tribological Properties of Hydroxiapatite Reinforced Ti13Nb13Zr/HA Composite Produced by Friction Stir Process (FSP)

Recent approaches to limit the tribocorrosion of biomaterials: A review

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