Surface performances of Ti-6Al-4V substrates coated PVD multilayered films in biological environments

Bahi, R.; Nouveau, Corinne; Beliardouh, Nasser Eddine; Ramoul, C.E.; Meddah, Soumaya; Ghelloudj, Oualid

doi:10.1016/j.surfcoat.2020.125412

Cited by 31 publications

(13 citation statements)

References 34 publications

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“…Greater mechanical properties, corrosion resistance, and biocompatibility occurred with the upgrade of the N/Ti ratio. In the work of Bahi et al (2020) , two types of coatings were studied: TiN as the top layer, while the upper layer of the others was TiO 2 with two different oxygen content. The TiN presents the best tribological performance in the multilayered film condition when its surface slide against the bovine cortical bone.…”

Section: Physical Modificationmentioning

confidence: 99%

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Xue

Attarilar

Liu

et al. 2020

Front. Bioeng. Biotechnol.

129

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Depending on the requirements of specific applications, implanted materials including metals, ceramics, and polymers have been used in various disciplines of medicine. Titanium and its alloys as implant materials play a critical role in the orthopedic and dental procedures. However, they still require the utilization of surface modification technologies to not only achieve the robust osteointegration but also to increase the antibacterial properties, which can avoid the implant-related infections. This article aims to provide a summary of the latest advances in surface modification techniques, of titanium and its alloys, specifically in biomedical applications. These surface techniques include plasma spray, physical vapor deposition, sol-gel, micro-arc oxidation, etc. Moreover, the microstructure evolution is comprehensively discussed, which is followed by enhanced mechanical properties, osseointegration, antibacterial properties, and clinical outcomes. Future researches should focus on the combination of multiple methods or improving the structure and composition of the composite coating to further enhance the coating performance.

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Section: Physical Modificationmentioning

confidence: 99%

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Xue

Attarilar

Liu

et al. 2020

Front. Bioeng. Biotechnol.

129

View full text Add to dashboard Cite

show abstract

“…is phenomenon was also observed by Yousfi [17], where it was assumed that it is the cause of COF instability. In addition, a recent study by Bahi et al [12] showed that the COF for TiN/TiO 2 multilayer coating of Ti-6Al-4V substrate to be unstable COF as sliding distance increases. From Figure 7, it can be understood that there is a tendency for COF to decrease as load increases.…”

Section: Analysis Of Wear Mass Loss Anova Analysis Is Used To Evaluate Input Factors On Wmlmentioning

confidence: 99%

“…Ti and Ti alloys are lightweight and have improved biocompatibility and corrosion resistance, making them popular in medical and dental applications [11]. Protecting Ti-6Al-4V substrates with PVD coatings has been shown to improve mechanical characteristics, biocompatibility, osseointegration, wear, and corrosion resistance [12].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling and Analysis of Wear Behavior of AlTiN Coating on Titanium Alloy (Ti-6Al-4V)

Sivaprakasam

Kirubel

Elias

et al. 2021

Advances in Materials Science and Engineering

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In this study, the wear behavior of a physical vapor deposition (PVD) AlTiN coated on the titanium alloy was investigated. Response surface methodology (RSM) was used to analyze input factors, such as load (A), sliding speed (B), and sliding distance (C), while wear mass loss (WML) and coefficient of driction (COF) were considered as the response parameters. The statistical analysis shows that main factors, that is, interaction of AC and pure quadratic terms B2 and C2, have maximum influences on WML. However, COF was highly affected by load, sliding speed, and interaction of AB and quadratic term A2. The present work attempts to carry out empirical modeling to predict output response on WML and COF. Desirability-based optimization technique was employed to obtain minimum WML and COF. Microscopy images of the wear tracks reveal visible grooves and scratches that confirm abrasive wear to be the primary wear mechanism accompanied by adhesive wear. The investigation concluded that AlTiN has better wear resistance properties and can be used to coat titanium implants for biomedical application. The result shows that the minimum WML and COF have been found at applied load 15 N, sliding speed at 0.5 m/s, and sliding distance 500 m.

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“…In particular, Ti-based intermetallic thin films could combine promising biocompatibility and high durability [ 18 , 20 ]. Among several available techniques, physical vapor deposition (PVD), e.g., sputtering, is one of the most commonly used techniques to coat implants [ 21 ], as the films produced by the sputtering process have very low surface roughness, which also play an important role on biofilm adhesion on Ti-based thin films [ 22 , 23 , 24 ]. The addition of several metallic elements during processing can improve the properties of pure Ti by the formation of intermetallic compounds.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Silver Content on Mechanical Properties of Ti-Cu-Ag Thin Films

et al. 2021

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In this work, the ternary titanium, copper, and silver (Ti-Cu-Ag) system is investigated as a potential candidate for the production of mechanically robust biomedical thin films. The coatings are produced by physical vapor deposition—magnetron sputtering (MS-PVD). The composite thin films are deposited on a silicon (100) substrate. The ratio between Ti and Cu was approximately kept one, with the variation of the Ag content between 10 and 35 at.%, while the power on the targets is changed during each deposition to get the desired Ag content. Thin film characterization is performed by X-ray diffraction (XRD), nanoindentation (modulus and hardness), to quantitatively evaluate the scratch adhesion, and atomic force microscopy to determine the surface topography. The residual stresses are measured by focused ion beam and digital image correlation method (FIB-DIC). The produced Ti-Cu-Ag thin films appear to be smooth, uniformly thick, and exhibit amorphous structure for the Ag contents lower than 25 at.%, with a transition to partially crystalline structure for higher Ag concentrations. The Ti-Cu control film shows higher values of 124.5 GPa and 7.85 GPa for modulus and hardness, respectively. There is a clear trend of continuous decrease in the modulus and hardness with the increase of Ag content, as lowest value of 105.5 GPa and 6 GPa for 35 at.% Ag containing thin films. In particular, a transition from the compressive (−36.5 MPa) to tensile residual stresses between 229 MPa and 288 MPa are observed with an increasing Ag content. The obtained results suggest that the Ag concentration should not exceed 25 at.%, in order to avoid an excessive reduction of the modulus and hardness with maintaining (at the same time) the potential for an increase of the antibacterial properties. In summary, Ti-Cu-Ag thin films shows characteristic mechanical properties that can be used to improve the properties of biomedical implants such as Ti-alloys and stainless steel.

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Surface performances of Ti-6Al-4V substrates coated PVD multilayered films in biological environments

Cited by 31 publications

References 34 publications

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review

Mathematical Modeling and Analysis of Wear Behavior of AlTiN Coating on Titanium Alloy (Ti-6Al-4V)

Influence of the Silver Content on Mechanical Properties of Ti-Cu-Ag Thin Films

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