| Issue |
MATEC Web Conf.
Volume 406, 2024
2024 RAPDASA-RobMech-PRASA-AMI Conference: Unlocking Advanced Manufacturing - The 25th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, hosted by Stellenbosch University and Nelson Mandela University
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| Article Number | 02011 | |
| Number of page(s) | 7 | |
| Section | Computational & Data-driven Modelling seminar | |
| DOI | https://doi.org/10.1051/matecconf/202440602011 | |
| Published online | 09 December 2024 | |
Effect of V and Ni addition on the Ti-Pt shape memory alloys for high temperature applications
1 *Advanced Materials Engineering, Manufacturing, Council for Scientific and Industrial Research, PO Box 395, Pretoria, 0001, South Africa,
2 Department of Physics, Sefako Makgatho Health Sciences University, P.O Box 94, Ga-Rankuwa 0204, South Africa
* Corresponding author: Rmahlangu1@csir.co.za.
Currently, high temperature shape memory alloys (HTSMA) are in great demand for their development and commercialization. The titanium- platinum (TiPt) alloy is the most attractive and promising HTSMA for aerospace and automobile applications due to its high transformation temperature of above 1300 K. The binary TiPt alloy has been found to show a limited shape memory capacity due to a lower critical stress needed for slip deformation rather than martensitic transformation. Incorporating alloying elements has been recommended as a method to enhance both the mechanical properties and shape memory effect of the binary TiPt alloy but may alter the transformation temperature. In this study, the effect of vanadium (V) and nickel (Ni) on the B2 TiPt alloy is investigated using first principle approach. The structural and elastic properties of the alloys are determined. The addition of both V and Ni was found to be stabilizing the cubic beta phase with a positive tetragonal shear C՛ observed. In addition, the density of states of the structures are presented.
© The Authors, published by EDP Sciences, 2024
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