US Patent 7316753 Coherent nanodispersion-strengthened shape-memory alloys

Patent 7316753 was granted and assigned to Questek Innovations Llc on January, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Questek Innovations Llc

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7316753

Date of Patent

January 8, 2008

Patent Application Number

10809082

Date Filed

March 25, 2004

Patent Citations Received

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US Patent 12024760 Precipitation-strengthened shape memory alloys, designing methods and applications of same

Patent Primary Examiner

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George Wyszomierski

Patent abstract

High-strength, low-hysteresis TiNi-based shape-memory alloys (SMAS) employing fully coherent low-misfit nanoscale precipitates, wherein the precipitate phase is based on an optimized composition for high parent-phase strength and martensite phase stability, and compensating the stored elastic energy through the addition of martensite stabilizers. The alloys, with a yield strength in excess of 1200 MPa, are useful for applications such as self-expanding stents, automotive actuators, and other applications wherein SMAs with high output force and long cyclic life are desired.