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

Joris, O P J; Smith, D; 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., …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
• Electronic ISSN: 1361-648X
• 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