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Optimization of anti-wear and anti-bacterial properties of beta TiNb alloy via controlling duty cycle in open-air laser nitriding
- Source :
- Chang, X, Smith, G C, Quinn, J, Carson, L, Chan, C W & Lee, S 2020, ' Optimization of anti-wear and anti-bacterial properties of beta TiNb alloy via controlling duty cycle in open-air laser nitriding ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 110, 103913 . https://doi.org/10.1016/j.jmbbm.2020.103913, Chang, X, Smith, G C, Quinn, J, Carson, L, Chan, C-W & Lee, S 2020, ' Optimization of anti-wear and anti-bacterial properties of beta TiNb alloy via controlling duty cycle in open-air laser nitriding ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 110, 103913 . https://doi.org/10.1016/j.jmbbm.2020.103913
- Publication Year :
- 2020
-
Abstract
- A multifunctional beta TiNb surface, featuring wear-resistant and antibacterial properties, was successfully created by means of open-air fibre laser nitriding. Beta TiNb alloy was selected in this study as it has low Young's modulus, is highly biocompatible, and thus can be a promising prosthetic joint material. It is, however, necessary to overcome intrinsically weak mechanical properties and poor wear resistance of beta TiNb in order to cover the range of applications to load-bearing and/or shearing parts. To this end, open-air laser nitriding technique was employed. A control of single processing parameter, namely duty cycle (between 5% and 100%), led to substantially different structural and functional properties of the processed beta TiNb surfaces as analyzed by an array of analytical tools. The TiNb samples nitrided at the DC condition of 60% showed a most enhanced performance in terms of improving surface hardness, anti-friction, anti-wear and anti-bacterial properties in comparison with other conditions. These findings are expected to be highly important and useful when TiNb alloys are considered as materials for hip/knee articular joint implants.
- Subjects :
- Materials science
Friction
Surface Properties
Alloy
Biomedical Engineering
Modulus
Biocompatible Materials
02 engineering and technology
engineering.material
law.invention
Biomaterials
03 medical and health sciences
0302 clinical medicine
Wear
Hardness
law
Materials Testing
Beta Ti–Nb alloys
Alloys
Composite material
Titanium
Shearing (physics)
Duty cycle
Lasers
030206 dentistry
021001 nanoscience & nanotechnology
Laser
Antibacterial
Fibre laser nitriding
Mechanics of Materials
Beta (plasma physics)
engineering
0210 nano-technology
Nitriding
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Chang, X, Smith, G C, Quinn, J, Carson, L, Chan, C W & Lee, S 2020, ' Optimization of anti-wear and anti-bacterial properties of beta TiNb alloy via controlling duty cycle in open-air laser nitriding ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 110, 103913 . https://doi.org/10.1016/j.jmbbm.2020.103913, Chang, X, Smith, G C, Quinn, J, Carson, L, Chan, C-W & Lee, S 2020, ' Optimization of anti-wear and anti-bacterial properties of beta TiNb alloy via controlling duty cycle in open-air laser nitriding ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 110, 103913 . https://doi.org/10.1016/j.jmbbm.2020.103913
- Accession number :
- edsair.doi.dedup.....3b491634c284684147f25fa8a6e1d1c9