Lin, H-K., Hsieh, T-H., Cheng, Y-H., Bazarnik, P., Wang, C. T., Huang, Y., Ye, J., Abdelkader, A. and Langdon, T. G., 2024. Improving the strength and surface properties of TNTZ alloy through a combination of high-pressure torsion and laser surface treatment. International Journal of Advanced Manufacturing Technology, 134, 2693-2704.
Full text available as:
PDF
LinHK-TNTZ paper accepted.pdf - Accepted Version Restricted to Repository staff only until 25 August 2025. Available under License Creative Commons Attribution Non-commercial. 1MB | |
Copyright to original material in this document is with the original owner(s). Access to this content through BURO is granted on condition that you use it only for research, scholarly or other non-commercial purposes. If you wish to use it for any other purposes, you must contact BU via BURO@bournemouth.ac.uk. Any third party copyright material in this document remains the property of its respective owner(s). BU grants no licence for further use of that third party material. |
DOI: 10.1007/s00170-024-14293-1
Abstract
The Ti–29Nb–13Ta–4.6Zr alloy (TNTZ) is a β-Ti alloy that has a potential for use in biomedical applications as an alternative to the less-compatible Ti64 alloys. Enhancing the strength and the surface finish of TNTZ is essential for biomedical applications. In this research, a combination of high-pressure torsion (HPT) and laser treatment was used to improve the TNTZ properties. The HPT-treated samples showed significantly enhanced mechanical properties when compared with the traditional solution-treated TNTZ. A laser surface treatment immediately forms a hydrophilic surface that transforms into a steady hydrophobic state after 14 days in air and the surface roughness increases with an increase in laser power and a slower scanning rate. The corrosion resistance of TNTZ improves significantly after laser treatment, with the corrosion current dropping from 1×10-8 A to 1.2 ×10-9 A and the corrosion potential peak shifting to a more positive value from -0.349 V to -0.158 V. The friction coefficient after laser treatment decreased from 0.134 to 0.093 and then further reduced to 0.082 after 14 days in air thereby suggesting an enhancement in the tribological properties. Overall, the results show that HPT processing combined with a post-HPT laser treatment is beneficial for enhancing the mechanical properties and the corrosion and wear performance of the TNTZ alloy.
Item Type: | Article |
---|---|
ISSN: | 0178-0026 |
Uncontrolled Keywords: | Electrochemistry; High-pressure torsion; Hydrophobicity; Laser surface modification; TNTZ alloy |
Group: | Faculty of Science & Technology |
ID Code: | 40245 |
Deposited By: | Symplectic RT2 |
Deposited On: | 28 Aug 2024 12:02 |
Last Modified: | 12 Sep 2024 08:20 |
Downloads
Downloads per month over past year
Repository Staff Only - |