Title:
SUPERELASTIC WIRE AND METHOD OF FORMATION
Document Type and Number:
WIPO Patent Application WO/2013/089952
Kind Code:
A3
Abstract:
A shape memory alloy including a Ni-Ti based alloy is superelastic at temperatures of about -40°C to about 60°C after being exposed to temperatures of about -55°C to about 85°C. A method of forming a memory shape alloy may include preparing a rod comprising a Ni-Ti alloy, drawing a wire from the rod, and treating the wire at a temperature of about 500°C to about 550°C for about less than 1 minute.
Inventors:
RAJAN SUNDER S (US)
Application Number:
PCT/US2012/064537
Publication Date:
April 03, 2014
Filing Date:
November 09, 2012
Export Citation:
Assignee:
RAYTHEON CO (US)
International Classes:
H01Q15/20; C22C19/00; C22F1/10
Foreign References:
| US6375458B1 | 2002-04-23 | |||
| US20070293939A1 | 2007-12-20 | |||
| EP1762633A1 | 2007-03-14 | |||
| US5272486A | 1993-12-21 | |||
| US20110097543A1 | 2011-04-28 | |||
| US7288326B2 | 2007-10-30 |
Other References:
SIA NEMAT-NASSER ET AL: "Superelastic and cyclic response of NiTi SMA at various strain rates and temperatures", MECHANICS OF MATERIALS, vol. 38, no. 5-6, 1 May 2006 (2006-05-01), pages 463 - 474, XP055097309, ISSN: 0167-6636, DOI: 10.1016/j.mechmat.2005.07.004
J.-C. BRACHET ET AL: "Superelasticity and Impact Properties of Two Shape Memory Alloys : Ti 50 Ni 50 and Ti 50 Ni 48 Fe 2", LE JOURNAL DE PHYSIQUE IV, vol. 07, no. C5, 1 November 1997 (1997-11-01), pages C5 - 561, XP055097305, ISSN: 1155-4339, DOI: 10.1051/jp4:1997589
J.-C. BRACHET ET AL: "Superelasticity and Impact Properties of Two Shape Memory Alloys : Ti 50 Ni 50 and Ti 50 Ni 48 Fe 2", LE JOURNAL DE PHYSIQUE IV, vol. 07, no. C5, 1 November 1997 (1997-11-01), pages C5 - 561, XP055097305, ISSN: 1155-4339, DOI: 10.1051/jp4:1997589
Attorney, Agent or Firm:
GREEN, Robert, A. (Parker & Hale LLP,P.O. Box 2900, Glendale CA, US)
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