| 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 | 07008 | |
| Number of page(s) | 7 | |
| Section | Computational & Data-driven Modelling | |
| DOI | https://doi.org/10.1051/matecconf/202338807008 | |
| Published online | 15 December 2023 | |
Study of shape memory properties of Ti(50)Ni(50-x) Mx (M= Nb, Mo and Fe) alloys for biomedical applications using first principle approach
1 Department of Physics, SMU, P.O. Box 94, Medunsa, Ga-Rankuwa, 0204, South Africa
2 Advanced Materials Engineering, Manufacturing Cluster, CSIR, P.O. Box 395, Pretoria, 0001, South Africa
* Corresponding author: mathewsthabisoabel@mail.com
The discovery of TiNi binary alloys has revolutionised the scientific and industrial communities more so in biomedical applications due to their excellent shape memory properties and biocompatibility. When TiNi is exposed to an external stimulus such as stress or temperature change, the material is able to recover its original structure after significant or quasi-plastic deformation. The aim of this study was to investigate the shape memory properties of TiNi(50-x)-Mx (M = Nb, Fe, Mo) alloys. In this study, CASTEP was used to perform first-principles calculations and to predict shape memory behaviour and biomechanical properties of these alloys. The results showed a decrease in the formation energy of Ti8Ni7Fe1. The poisons ratio was increasing significantly to the value of 0.39 corresponding to the G/B results. Initial fermi levels increased with the addition of a ternary alloy. Ti8Ni7Fe1 proved to be the best candidate for replacing TiNi alloys.
© The Authors, published by EDP Sciences, 2023
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