Superconducting Properties of Titanium alloys (Ti-64 and Ti-6242) for critical current barrels
Ridgeon, F.J.; Raine, M.J.; Halliday, D.P.; Lakrimi, M.; Thomas, A.; Hampshire, D.P.
Dr Mark Raine email@example.com
Chief Experimental Officer
Professor Douglas Halliday firstname.lastname@example.org
Professor Damian Hampshire email@example.com
We have measured the superconducting properties of the titanium alloy Ti-6Al-4V (Ti-64) as-supplied and following two of the heat treatment schedules used for the Nb3Sn strands in the ITER tokamak. The Ti-64 alloy is the standard choice in the superconducting community for the barrels used to make critical current (IC) measurements in high magnetic fields at cryogenic temperatures. Ti-64, which has a two-phase alpha + beta microstructure and contains vanadium (n.b. TC(V) ~ 5.4 K), is superconducting at 4.2 K in fields up to 3 T. We have also measured Ti-6Al-2Sn-4Zr-2Mo-0.2Si (Ti-6242), which is in the near alpha phase and contains tin (n.b. TC(Sn) ~ 3.7 K). The critical temperature of Ti-6242 is 2.38 K which is lower than the 5.12 K of Ti-64. Hence Ti-6242 is a better choice of barrel material for IC measurements required at 4.2 K in low fields up to 3 T, because it remains in the normal state.
Ridgeon, F., Raine, M., Halliday, D., Lakrimi, M., Thomas, A., & Hampshire, D. (2017). Superconducting Properties of Titanium alloys (Ti-64 and Ti-6242) for critical current barrels. IEEE Transactions on Applied Superconductivity, 27(4), Article 4201205. https://doi.org/10.1109/tasc.2016.2645378
|Journal Article Type||Article|
|Acceptance Date||Nov 17, 2016|
|Online Publication Date||Dec 26, 2016|
|Publication Date||Jun 1, 2017|
|Deposit Date||Nov 17, 2016|
|Publicly Available Date||Nov 22, 2016|
|Journal||IEEE Transactions on Applied Superconductivity|
|Publisher||Institute of Electrical and Electronics Engineers|
|Peer Reviewed||Peer Reviewed|
Accepted Journal Article
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