Sheremetyev, V., Prokoshkin, S., Brailovski, V., Dubinskiy, S., Filonov, M. and Petrzhik, M..
2015.
« Long-term stability of superelastic behavior of nanosubgrained Ti-Nb-Zr and Ti-Nb-Ta shape memory alloys ».
[Conference paper]. Materials Today: Proceedings, vol. 2, nº suppl. 1.
S26-S31.
Compte des citations dans Scopus : 4.
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Long-term stability of superelastic behavior of nanosubgrained Ti- Nb-Zr and Ti-Nb-Ta shape memory alloys.pdf Download (3MB) | Preview |
Abstract
Ti-21.8Nb-6Zr and Ti-19.7Nb-5.8Ta (at.%) shape memory alloys for medical implants were subjected to a thermomechanical treatment comprising cold rolling and post-deformation annealing. The evolutions of their structure and their superelastic behavior were monitored during mechanical “loading-unloading” 10-cycle testing (3 times) and during long-term pauses between testing (40 and 365 days). During the first multicycle testing of the Ti-Nb-Ta alloy, its Young's modulus showed a significant decrease (from 30 GPa - 40 GPa to 20 GPa - 25 GPa). It regained its initial value after a first pause, and then decreased again during re-testing, but to a smaller extent, regaining its initial value after the second pause and finally stabilizing. The Ti-Nb-Zr alloy demonstrated more stable SE behavior than the Ti-Nb-Ta alloy: its Young's modulus showed only a 10 % decrease during the first mechanical cycling (from 31 GPa - 40 GPa to 27 GPa - 37 GPa), restored its initial value after a first pause and then remained stable.
| Item Type: | Peer reviewed article published in a journal |
|---|---|
| Additional Information: | Conference MEFORM 2015, Light Metals – Forming Technologies and Further Processing |
| Professor: | Professor Brailovski, Vladimir |
| Affiliation: | Génie mécanique |
| Date Deposited: | 03 Dec 2015 14:47 |
| Last Modified: | 25 Apr 2016 21:05 |
| URI: | https://espace2.etsmtl.ca/id/eprint/11926 |
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