| Issue |
MATEC Web Conf.
Volume 388, 2023
2023 RAPDASA-RobMech-PRASA-AMI Conference Advanced Manufacturing Beyond Borders - The 24th Annual International RAPDASA Conference joined by RobMech, PRASA and AMI, hosted by CSIR and CUT
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| Article Number | 03011 | |
| Number of page(s) | 6 | |
| Section | Material Development | |
| DOI | https://doi.org/10.1051/matecconf/202338803011 | |
| Published online | 15 December 2023 | |
Spark plasma sintered Ti-35Nb-7Zr-5Ta-1Cu alloy
1 Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, South Africa
2 Light Metal of Materials & Manufacturing, Council for Scientific and Industrial Research, Pretoria, South Africa
* Corresponding author: roseayandat@gmail.com or 213320807@tut4life.ac.za
Beta-titanium alloys composed of non-toxic and non-allergic alloying elements are the material of choice for biomedical applications. The effects of Cu addition and heat treatment on the microstructural evolution and phase transformation of Ti-35Nb-7Zr-5Ta alloys were thoroughly investigated. The spark plasma sintering (SPS) was used to fabricate Ti-35Nb-7Zr-5Ta with a micro-addition of 1 wt.% Cu. Field Emission Scanning Electron Microscopy (FE-SEM) and X-ray diffractometry (XRD) were used to investigate microstructural evolution and phase transformation. Microstructures obtained include a predominant BCC β-phase and a two-phase area (α+β) with a large grain boundary of β-phase without the intermetallic phase, implying a positive effect on the mechanical properties of the alloy. The sintered alloys exhibited excellent corrosion resistance and may be suitable candidates for biomaterial applications.
Key words: Ti-alloy / Biomaterials / Microstructures / Crystallography Electrochemical analysis
© The Authors, published by EDP Sciences, 2023
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