On the high-pressure phase stability and elastic properties of β-titanium alloys

Smith, D; Joris, O P J; Sankaran, A; Weekes, H E; Bull, D J; Dye, D; Errandonea, D; Smith, Dean; Joris, Oliver P. J.; Sankaran, Ananthi; Weekes, Hannah E.; Bull, Dan J.; Prior, T J; Dye, David; Errandonea, Daniel; Proctor, J E

Abstract

We have studied the compressibility and stability of different β-titanium alloys at high pressure, including binary Ti-Mo, Ti-24Nb-4Zr-8Sn (Ti2448) and Ti-36Nb-2Ta-0.3O (gum metal). We observed stability of the β phase in these alloys to 40 GPa, well into the ω phase region in the P-T diagram of pure titanium. Gum metal was pressurised above 70 GPa and forms a phase with a crystal structure similar to the η phase of pure Ti. The bulk moduli determined for the different alloys range from 97 ± 3 GPa (Ti2448) to 124 ± 6 GPa (Ti-16.8Mo-0.13O).

Citation

Smith, D., Joris, O. P. J., Sankaran, A., Weekes, H. E., Bull, D. J., Dye, D., Errandonea, D., Smith, D., Joris, O. P. J., Sankaran, A., Weekes, H. E., Bull, D. J., Prior, T. J., Dye, D., Errandonea, D., & Proctor, J. E. (2017). On the high-pressure phase stability and elastic properties of β-titanium alloys. Journal of Physics: Condensed Matter, 29(15), 155401. https://doi.org/10.1088/1361-648x/aa60b6

• Acceptance Date: Feb 15, 2017
• Online Publication Date: Mar 7, 2017
• Publication Date: Apr 20, 2017
• Deposit Date: May 3, 2017
• Publicly Available Date: Mar 14, 2018
• Journal: Journal of physics : condensed matter
• Print ISSN: 0953-8984
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 29
• Issue: 15
• Article Number: ARTN 155401
• Pages: 155401
• DOI: https://doi.org/10.1088/1361-648x/aa60b6
• Keywords: Titanium; Titanium alloys; Biomaterials; Phase stability; Diamond anvil cell
• Public URL: https://hull-repository.worktribe.com/output/451001
• Publisher URL: http://iopscience.iop.org/article/10.1088/1361-648X/aa60b6
• Additional Information: Journal title: Journal of Physics: Condensed Matter; Article type: paper; Article title: On the high-pressure phase stability and elastic properties ofβ-titanium alloys; Copyright information: © 2017 IOP Publishing Ltd; Date received: 2016-11-22; Date accepted: 2017-02-15; Online publication date: 2017-03-07
• Contract Date: Mar 14, 2018