Polymorphous nanostructured metallic glass coatings for corrosion protection of medical grade Ti substrate

C.R. Onyeagba; G. Will; M. Barclay; C. Brown; H. Wang; T. Tesfamichael

doi:10.1016/j.intermet.2023.108167

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Polymorphous nanostructured metallic glass coatings for corrosion protection of medical grade Ti substrate

Journal article

Open access

Peer reviewed

Polymorphous nanostructured metallic glass coatings for corrosion protection of medical grade Ti substrate

C.R. Onyeagba, G. Will, M. Barclay, C. Brown, H. Wang and T. Tesfamichael

Intermetallics, Vol.165, pp.1-10

2024

DOI: https://doi.org/10.1016/j.intermet.2023.108167

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Abstract

polymorphous metallic glasses

nanostructured thin films

corrosion resistance

electrochemical proporties

simulated body fluid

medical-grand implants

co-sputtering

Metallic glasses have received attention in the world of materials science and engineering due to their high mechanical and tribological properties. Thin film nanostructured metallic glasses have shown great prospects as surface coatings with increasing applications in biomedical areas for implants and surgical devices. In this work, we deposited titanium- and zirconium-based polymorphous thin film metallic glasses (Ti–Fe–Cu, Zr–Fe–Al, Zr–W–Cu) on medical-grade polished titanium substrate by co-sputtering using a PVD system. The corrosion behaviour of the films was investigated by exposing the samples to sterile simulated body fluid and examined using electrochemistry, microscopy, and spectroscopic analyses. The polymorphic properties of the films after exposure to simulated body fluid were observed by SEM and TEM. SEM analysis shows that the surface morphology of the exposed samples was found to vary significantly compared to their corresponding as-deposited samples. Electrochemical properties (Ecorr, Icorr, and OCV, impedance |Z|) demonstrated that the thin film metallic glasses were found to enhance the corrosion resistance of the substrate. Further investigations of the exposed films by XPS and Raman analyses have revealed that the induced oxide passive layer significantly enhanced the corrosion efficacy of the films on titanium substrate. Among the three samples, Zr–W–Cu coating has shown the highest corrosion protection almost 450 times better than the bare titanium substrate.

Details

Title: Polymorphous nanostructured metallic glass coatings for corrosion protection of medical grade Ti substrate
Authors: C.R. Onyeagba (Corresponding Author) - Queensland University of Technology
G. Will (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
M. Barclay (Author) - Queensland University of Technology
C. Brown (Author) - Queensland University of Technology
H. Wang (Author) - Queensland University of Technology
T. Tesfamichael (Corresponding Author) - Queensland University of Technology
Publication details: Intermetallics, Vol.165, pp.1-10
Publisher: Elsevier Ltd
Date published: 2024
DOI: 10.1016/j.intermet.2023.108167
ISSN: 1879-0216; 0966-9795
Data Availability: Data will be made available on request.
Grant note: This work was funded by an MMPE ECR SEED grant (323100-0520/07, 2021).
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 99987977502621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering