Improved wear resistance of functional diamond like carbon coated Ti–6Al–4V alloys in an edge loading conditions

Choudhury, Dipankar; Lackner, J.M.; Major, Ł.; Morita, Takehiro; Sawae, Yoshinori; Mamat, Azuddin; Stavness, Ian; Roy, Chanchal K.; Křupka, Ivan

doi:10.1016/j.jmbbm.2016.04.004

Cited by 29 publications

(17 citation statements)

References 45 publications

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“…Subramanian et al compared TiN, TiON, and TiAlN as surface coatings on CP–Ti prepared by direct current reactive magnetron sputtering method and indicated all coatings show good cytocompatibility with L‐929 mouse fibroblast cell lines. Choudhury et al investigated the durability of functional DLC coated Ti–6Al–4V for application in artificial hip joints and the results showed a significant wear reduction to the DLC coated Ti–6Al–4V compared with that of non‐coated counterparts. Meanwhile, it is reported that DLC films‐coated Ti alloys, as well as other materials, do not cause any cytotoxicity and inflammation during long‐term implantation .…”

Section: Surface Modification Of Ti Alloys For Biomedical Applicationsmentioning

confidence: 99%

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

2019

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Compared with stainless steel and Co-Cr-based alloys, Ti and its alloys are widely used as biomedical implants due to many fascinating properties, such as superior mechanical properties, strong corrosion resistance, and excellent biocompatibility. After briefly introducing several most commonly used biomedical materials, this article reviews the recent development in Ti alloys and their biomedical applications, especially the low-modulus β-type Ti alloys and their design methods. This review also systemically investigates the recently attractive progress in preparation of biomedical Ti alloys, including additive manufacturing, porous powder metallurgy, and severe plastic deformation, applied in the manufacturing and the influenced microstructures and properties. Nevertheless, there are still some problems with the long-term performance of Ti alloys, and therefore several surface modification methods are reviewed to further improve their biological activity, wear resistance, and corrosion resistance. Finally, the biocompatibility of Ti and its alloys is concluded. Summarizing the findings from literature, future prediction is also conducted. Darmstadt. His current research interest is focusing on the metal additive manufacturing (e.g. selective laser melting, electron beam melting), titanium alloys and composites, and processing-microstructure-properties in high-performance materials.

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Section: Surface Modification Of Ti Alloys For Biomedical Applicationsmentioning

confidence: 99%

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

2019

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“…To improve the adhesion between the coating and the substrate, interlayers of Ti, tantalum (Ta), or CrC have been used to minimize the residual stresses at the interface. Recently, a DLC layer with a varying thickness of multi-interlayers of Cr-Cr 2 N was reported to increase the fracture strength or adhesion of the DLC coating [91]. However, the hardness of these multilayer coatings (800-1000 HV) was almost half of that of sintered alumina (1800-2000 HV) [91].…”

Section: Ultra-hard Coatings On Metalsmentioning

confidence: 99%

“…Recently, a DLC layer with a varying thickness of multi-interlayers of Cr-Cr 2 N was reported to increase the fracture strength or adhesion of the DLC coating [91]. However, the hardness of these multilayer coatings (800-1000 HV) was almost half of that of sintered alumina (1800-2000 HV) [91]. In addition, there could be concerns about inflammation due to release of Cr over the long term.…”

Section: Ultra-hard Coatings On Metalsmentioning

confidence: 99%

Progress in Wear Resistant Materials for Total Hip Arthroplasty

et al. 2017

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Current trends in total hip arthroplasty (THA) are to develop novel artificial hip joints with high wear resistance and mechanical reliability with a potential to last for at least 25-30 years for both young and old active patients. Currently used artificial hip joints are mainly composed of femoral head of monolithic alumina or alumina-zirconia composites articulating against cross-linked polyethylene liner of acetabular cup or Co-Cr alloy in a self-mated configuration. However, the possibility of fracture of ceramics or its composites, PE wear debris-induced osteolysis, and hypersensitivity issue due to metal ion release cannot be eliminated. In some cases, thin ultra-hard diamond-based, TiN coatings on Ti-6A-4V or thin zirconia layer on the Zr-Nb alloy have been fabricated to develop high wear resistant bearing surfaces. However, these coatings showed poor adhesion in tribological testing. To provide high wear resistance and mechanical reliability to femoral head, a new kind of ceramic/metal artificial hip joint hybrid was recently proposed in which 10-15 µm thick dense layer of pure α-alumina was formed onto Ti-6Al-4V alloy by deposition of Al metal layer by cold spraying or cold metal transfer methods with 1-2 µm thick Al 3 Ti reaction layer formed at their interface to improve adhesion. An optimal micro-arc oxidation treatment transformed Al to dense α-alumina layer, which showed high Vickers hardness 1900 HV and good adhesion to the substrate. Further tribological and cytotoxicity analyses of these hybrids will determine their efficacy for potential use in THA.

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“…In joint applications, surface modifications have improved the wear resistance of titanium alloys by the formation of a bio-tribofilm [16,17]. The effect of tribofilm is highly related to its properties; i) its adhesion and surface chemical activity, ii) its shear resistance and lubricant properties and iii) the durability of tribofilm [18,19].…”

Section: Introductionmentioning

confidence: 99%

Mechanism of tribofilm formation on Ti6Al4V oxygen diffusion layer in a simulated body fluid

Yazdi

Ghasemi

Abedini

et al. 2018

Journal of the Mechanical Behavior of Biomedical Materials

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An Oxygen Diffusion Layer (ODL) was generated on the surface of Ti6Al4V alloy by thermal oxidation treatment. In vitro tests for cytotoxicity were performed in the presence of Ti6Al4V and the ODL samples with the culture of G292 Cells using MTT assay. The results showed a similar cell viability in the presence of the both samples. Wear behaviour of Ti6Al4V and the ODL samples was investigated in a phosphate buffered saline solution under a normal load of 30N at a sliding velocity of 0.1m/s. The worn surface and subsurface of the samples were studied using SEM, STEM, TEM, XPS, AFM, nano-hardness and surface profilometry. A bio-tribofilm was observed on the worn surface of the ODL. TEM studies showed that the tribofilm had an amorphous structure and contained oxygen and phosphorous as confirmed by XPS and EDS analysis. AFM images also revealed that the tribofilm consisted of compacted fine debris. The formation of the tribofilm on the ODL with higher hardness and strength resulted in a decrease of about 95% in the wear rate compared with Ti6Al4V alloy.

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Improved wear resistance of functional diamond like carbon coated Ti–6Al–4V alloys in an edge loading conditions

Cited by 29 publications

References 45 publications

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

Progress in Wear Resistant Materials for Total Hip Arthroplasty

Mechanism of tribofilm formation on Ti6Al4V oxygen diffusion layer in a simulated body fluid

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