Corrosion and Wear Behavior of TiO2/TiN Duplex Coatings on Titanium by Plasma Electrolytic Oxidation and Gas Nitriding

Bakhtiari-Zamani, Hassan; Saebnoori, Ehsan; Bakhsheshi-Rad, H.R.; Berto, Filippo

doi:10.3390/ma15238300

Cited by 11 publications

(6 citation statements)

References 69 publications

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“…As a result, the well-dispersed surface with identifiable active particles and fillers leads to the inhibition of bacteria. Taken together, the addition of various amounts of fillers, such as TiO 2 and CNTs, into the composites has a significant influence on the biological response, corrosion behavior and mechanical properties of the Mg-based composite [66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83].…”

Section: Discussionmentioning

confidence: 99%

MWCNTs-TiO2 Incorporated-Mg Composites to Improve the Mechanical, Corrosion and Biological Characteristics for Use in Biomedical Fields

et al. 2023

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This study attempts to synthesize MgZn/TiO2-MWCNTs composites with varying TiO2-MWCNT concentrations using mechanical alloying and a semi-powder metallurgy process coupled with spark plasma sintering. It also aims to investigate the mechanical, corrosion, and antibacterial properties of these composites. When compared to the MgZn composite, the microhardness and compressive strength of the MgZn/TiO2-MWCNTs composites were enhanced to 79 HV and 269 MPa, respectively. The results of cell culture and viability experiments revealed that incorporating TiO2-MWCNTs increased osteoblast proliferation and attachment and enhanced the biocompatibility of the TiO2-MWCNTs nanocomposite. It was observed that the corrosion resistance of the Mg-based composite was improved and the corrosion rate was reduced to about 2.1 mm/y with the addition of 10 wt% TiO2-1 wt% MWCNTs. In vitro testing for up to 14 days revealed a reduced degradation rate following the incorporation of TiO2-MWCNTs reinforcement into a MgZn matrix alloy. Antibacterial evaluations revealed that the composite had antibacterial activity, with an inhibition zone of 3.7 mm against Staphylococcus aureus. The MgZn/TiO2-MWCNTs composite structure has great potential for use in orthopedic fracture fixation devices.

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Section: Discussionmentioning

confidence: 99%

MWCNTs-TiO2 Incorporated-Mg Composites to Improve the Mechanical, Corrosion and Biological Characteristics for Use in Biomedical Fields

et al. 2023

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“…Uniform coatings on the Ti surface retard the movement of O 2 -carrying species, which results in higher corrosion inhibition. 61–63…”

Section: Resultsmentioning

confidence: 99%

“…Uniform coatings on the Ti surface retard the movement of O 2 -carrying species, which results in higher corrosion inhibition. [61][62][63] The Bode plot in Fig. 12C reveals that the coatings derived at 4000 rpm exhibited higher impedance at a lower frequency, which indicates better corrosion resistance in SBF solution.…”

Section: Adhesive Strengthmentioning

confidence: 99%

In situ fabrication of cerium-incorporated hydroxyapatite/magnetite nanocomposite coatings with bone regeneration and osteosarcoma potential

Priyadarshini¹,

Stango²,

Balasubramanian³

et al. 2023

Nanoscale Adv.

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“…It may related to the deterioration of the stability of the passivated film due to the immersion process in AS solution. It is well-known that the excellent corrosion resistance of titanium alloy which attributed to the formation of an oxide film with TiO 2 as the main component on the surface, but the solubility of TiO 2 in aqueous solution is still weak, and in general, its dissolution equilibrium is as follows: TiO 2 → TiO 2 + + normalO 2 − …”

Section: Discussionmentioning

confidence: 99%

Corrosion and Biological Behaviors of Biomedical Ti–24Nb–4Zr–8Sn Alloy under an Oxidative Stress Microenvironment

Liu,

Yan,

Yang

et al. 2024

ACS Appl. Mater. Interfaces

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Biomaterials can induce an inflammatory response in surrounding tissues after implantation, generating and releasing reactive oxygen species (ROS), such as hydrogen peroxide (H 2 O 2 ). The excessive accumulation of ROS may create a microenvironment with high levels of oxidative stress (OS), which subsequently accelerates the degradation of the passive film on the surface of titanium (Ti) alloys and affects their biological activity. The immunomodulatory role of macrophages in biomaterial osteogenesis under OS is unknown. This study aimed to explore the corrosion behavior and bone formation of Ti implants under an OS microenvironment. In this study, the corrosion resistance and osteoinduction capabilities in normal and OS conditions of the Ti−24Nb−4Zr−8Sn (wt %, Ti2448) were assessed. Electrochemical impedance spectroscopy analysis indicated that the Ti2448 alloy exhibited superior corrosion resistance on exposure to excessive ROS compared to the Ti−6Al−4V (TC4) alloy. This can be attributed to the formation of the TiO 2 and Nb 2 O 5 passive films, which mitigated the adverse effects of OS. In vitro MC3T3-E1 cell experiments revealed that the Ti2448 alloy exhibited good biocompatibility in the OS microenvironment, whereas the osteogenic differentiation level was comparable to that of the TC4 alloy. The Ti2448 alloy significantly alleviates intercellular ROS levels, inducing a higher proportion of M2 phenotypes (52.7%) under OS. Ti2448 alloy significantly promoted the expression of the antiinflammatory cytokine, interleukin 10 (IL-10), and osteoblast-related cytokines, bone morphogenetic protein 2 (BMP-2), which relatively increased by 26.9 and 31.4%, respectively, compared to TC4 alloy. The Ti2448 alloy provides a favorable osteoimmune environment and significantly promotes the proliferation and differentiation of osteoblasts in vitro compared to the TC4 alloy. Ultimately, the Ti2448 alloy demonstrated excellent corrosion resistance and immunomodulatory properties in an OS microenvironment, providing valuable insights into potential clinical applications as implants to repair bone tissue defects.

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Corrosion and Wear Behavior of TiO2/TiN Duplex Coatings on Titanium by Plasma Electrolytic Oxidation and Gas Nitriding

Cited by 11 publications

References 69 publications

MWCNTs-TiO2 Incorporated-Mg Composites to Improve the Mechanical, Corrosion and Biological Characteristics for Use in Biomedical Fields

MWCNTs-TiO2 Incorporated-Mg Composites to Improve the Mechanical, Corrosion and Biological Characteristics for Use in Biomedical Fields

In situ fabrication of cerium-incorporated hydroxyapatite/magnetite nanocomposite coatings with bone regeneration and osteosarcoma potential

Corrosion and Biological Behaviors of Biomedical Ti–24Nb–4Zr–8Sn Alloy under an Oxidative Stress Microenvironment

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