Process for inducing a two-way shape memory effect in a...

Details Process for inducing a two-way shape memory effect in a... Process for inducing a two-way shape memory effect in a...

2011-06-07

2011-06-07

King, Roy (Department: 1733)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C623S001180

Reexamination Certificate

active

07955449

ABSTRACT:
A process for inducing a two-way shape memory effect in a device forward of a shape memory alloy and a device made by the process are disclosed. The two-way memory effect occurs in the device in a temperature range of between about 5° C. to 25° C. wherein the training process is based on B2R phrase transformations. An R-phase formation or reorientation takes place in the device under stress whereupon the R-phase transforms into stress induced martenite. The device is subjected to thermocycling.

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A. Mehta et al., “On the Electronic and Mechanical Instabilities in Ni50.9Ti49.1”, Material Science and Engineering A 378 (2004) pp. 130-137.

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