Iron-based alloy having shape memory properties and...

Details Iron-based alloy having shape memory properties and... Iron-based alloy having shape memory properties and...

2006-11-02

2011-12-27

Silverman, Stanley (Department: 1736)

Alloys or metallic compositions

Ferrous

Over 10 percent nickel containing

C148S320000, C148S336000, C148S563000, C420S008000, C420S080000

Reexamination Certificate

active

08083990

ABSTRACT:
An iron-based alloy having shape memory properties and superelasticity, which has a composition comprising 25-35% by mass of Ni, 13-25% by mass of Co, 2-8% by mass of Al, and 1-20% by mass in total of at least one selected from the group consisting of 1-5% by mass of Ti, 2-10% by mass of Nb and 3-20% by mass of Ta, the balance being substantially Fe and inevitable impurities, and a recrystallization texture substantially comprising a γ phase and a γ′ phase, particular crystal orientations of the γ phase being aligned, and the difference between a reverse transformation-finishing temperature and a martensitic transformation-starting temperature being 100° C. or less in the thermal hysteresis of martensitic transformation and reverse transformation.

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English language machine translation of JP05255815.
ScienceDirect—Scripta Materialia: Stress-Induced FCC/FCT phase transformation in Fe-Pd alloy, http://www.scienedirect.com/science, obtained Mar. 26, 2008.
Canadian Office Action dated Dec. 3, 2010.

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