Electrochemical Behavior of Biomedical Titanium Alloys Coated with Diamond Carbon in Hanks’ Solution

Gnanavel, S.; Ponnusamy, S.; Mohan, L.; Radhika, R.; Muthamizhchelvan, C.; Ramasubramanian, Kartik

doi:10.1007/s11665-018-3250-9

Cited by 17 publications

(8 citation statements)

References 32 publications

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“…Yet, ALTR can occur in titanium stems coupled with CoCrMo femoral heads, and even in rare cases when coupled with ceramic heads [6]. Recently, a beta phase titanium alloy (TMZF) was introduced to provide better stress shielding properties and thus increased osseointegration [7]. However, implants made from TMZF showed in some cases gross trunnion failure (GTF) [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys I

Neto

Rainforth

2020

Biotribology

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Current hip prostheses make extensive use of the aerospace alloy Ti-6Al-4V. This material was designed for aerospace applications but has far from ideal mechanical properties for biomedical applications, namely, a high elastic modulus and poor fatigue resistance. Moreover, its poor tribological properties are well known.However, beta, or near beta Ti alloys are known to have superior properties in that its elastic modulus is closer to that of bone coupled with a good fatigue resistance.Therefore, this work aims to analyse the tribocorrosion behaviour of 4 different titanium alloys (Ti-13Nb-13Zr, Ti-12Mo-6Zr-2Fe and Ti-29Nb-13Ta-4.6Zr aged at 300 o C and at 400 o C) at anodic potential, OCP and cathodic potential at 0.5N, 1N and 2N in bovine serum to identify the main cause of material degradation, the presence of a tribofilm and the synergism between corrosion and wear. The results show the alloys become more active when subjected to sliding in all conditions, but the material loss is lower at anodic potential. The alloys studied present a positive effect of corrosion on wear.

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Section: Introductionmentioning

confidence: 99%

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys I

Neto

Rainforth

2020

Biotribology

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“…Similar results were reported by Mustafa Shakir. 24 Stern-Geary equation 25 is used to determine corrosion current.…”

Section: Resultsmentioning

confidence: 99%

“…The decrease in corrosion current increased the corrosion resistance of the HA-coated samples. 25 Hence, it enhances the corrosion resistance is noticed on the metal surface. The corrosion potential (Ecorr) values of the HA-coated alloys are shifted towards nobler value when compared to uncoated alloys.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical and biological behaviour of near β Titanium alloy for biomedical implant applications

Gnanavel

Ponnusamy

Sivakumar

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Pulsed laser deposition technique (PLD) is one of the methods to coat hydroxyapatite on near beta titanium alloys (Ti-13Nb-13Zr) implants which are used in orthopaedics and dentistry applications. In this study, Hydroxyapatite (HA) ceramics in the form of calcium phosphate (Cap) were deposited on nearβ Titanium alloys (Ti-13Nb-13Zr) by the pulsed laser deposition method. The coated thin film was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM) with Energy dispersive spectroscopy (EDS) and atomic microscopy (AFM). The corrosion studies were carried out coated and uncoated samples using potentiodynamic polarisation studies in simulated body fluid (Hanks’ solution). The bioactivity of the Hap-coated samples on nearβ Titanium alloys was evaluated by immersing them in simulated body fluid (SBF) for nine days. XRD and EDS analysis confirmed the presence of hydroxyapatite. The corrosion studies showed that the treated samples have better corrosion resistance compared to uncoated substrates. The formation of apatite on treated samples revealed the bioactivity of the Hap-coated substrates. HA-coated nearβ Titanium alloys provide higher corrosion protection than substrates, which can be used for biomedical implant applications.

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“…[55] It is predicted that the number of people who need implants like hip or knee joint replacements will be increased dramatically by 135% and 600%, respectively, in 2030. [56,57] Although the number of studies on material preparation, mechanical properties, in vitro degradation, and surface modification of orthopedic implants is booming, there is still a lack of breakthrough materials with excellent mechanical properties and corrosion resistance that can be used for high-quality implants. HEAs have recently become one of the most promising medical metallic materials due to their biological safety, high strength, high wear resistance, and excellent corrosion resistance.…”

Section: The Tribological Performances Of Heas Under Physiological En...mentioning

confidence: 99%

A Review on the Tribological Performances of High‐Entropy Alloys

Chen

Zhu

2022

Adv Eng Mater

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Wear is an important form of material loss and failure, and it is usually inevitable in almost all mechanical systems with moving parts. The durability and reliability of engineering components are closely related to their wear resistance. Developing advanced materials to alleviate energy and materials losses in moving mechanical systems still remains a great challenge nowadays. The emergence of novel high‐entropy alloys (HEAs) that compose of multiple principal elements holds great promise for the development of materials with extraordinary wear resistance, due to their high hardness, high wear resistance, and excellent corrosion resistance. Herein, the current research progress of the tribology of HEAs under different conditions is reviewed, including high temperature, dry condition, corrosion solution, and oil lubrication. Specifically, the effects of compositions, microstructures, lubricants, and protective oxide layers on the tribological performance of HEAs are summarized. Furthermore, the underlying mechanisms that are responsible for the excellent wear resistance of HEAs under different conditions are discussed. Finally, the current challenges and the future outlooks are emphasized and addressed systematically. In view of the excellent tribological performances and the diversity of compositional design, HEAs have great potential to be applied in a wide range of mechanical systems to minimize wear.

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Electrochemical Behavior of Biomedical Titanium Alloys Coated with Diamond Carbon in Hanks’ Solution

Cited by 17 publications

References 32 publications

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys I

Effect of Potential and Microstructure on the Tribocorrosion Behaviour of Beta and Near Beta Ti Alloys I

Electrochemical and biological behaviour of near β Titanium alloy for biomedical implant applications

A Review on the Tribological Performances of High‐Entropy Alloys

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