Title:
COHERENT NANODISPERSION-STRENGTHENED SHAPE-MEMORY ALLOYS
Document Type and Number:
WIPO Patent Application WO2005111255
Kind Code:
A3
Abstract:
High strength, low hysteresis TiNi-based shape-memory alloys (SMAs) employing fully coherent low-misfit nanoscale precipitates, as illustrated in Figure 5, 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.
Inventors:
JUNG JIN-WON (US)
OLSON GREGORY B (US)
OLSON GREGORY B (US)
Application Number:
PCT/US2004/009415
Publication Date:
March 09, 2006
Filing Date:
March 25, 2004
Export Citation:
Assignee:
QUESTEK INNOVATIONS LLC (US)
JUNG JIN-WON (US)
OLSON GREGORY B (US)
JUNG JIN-WON (US)
OLSON GREGORY B (US)
International Classes:
C22C19/03; C22F1/00; C22F1/10; (IPC1-7): C22C19/03; C22K1/00
Foreign References:
| US4144057A | 1979-03-13 | |||
| US5108523A | 1992-04-28 | |||
| US20030131915A1 | 2003-07-17 |
Other References:
See also references of EP 1629134A4
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