Nitinol

Shape Memory Alloys (SMAs) have been considered as one of the most promising smart materials. They can provide novel solution in several fields, for various applications (e.g. actuator, biomedical application, clamping systems, etc.).
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INTRODUCTION
VIDEO

Glossary

Shape Memory Effect

"Shape Memory" describes the restoration of the original shape of a plastically deformed sample upon heating.

Superelastic Effect

An elastic (reversible) responses to an applied temperature, caused by a phase transformation between the austenitic and martensitic phases of a crystal.

Ms- Initial temperature for an austenite to martensite transition

Mf- Final temperature for an austenite to martensite transition

As- Initial temperature for a martensite to austenite transition

Af- Final temperature for a martensite to austenite transition

Product
Nitinol

Nitinol is a metal alloy, sometimes also called Shape Memory Alloy (SMA). Nitinol alloys exhibit two closely related and unique properties: shape memory and superelasticity. Shape memory refers to the ability of a material to undergo deformation at one temperature, and then recover its original shape upon heating above its "transformation temperature". Superelasticity occurs in a narrow temperature range just above the transformation temperature; in these conditions, no heating is necessary to return to the pre-deformation shape.

Shape Memory Alloys (SMAs) have been considered as one of the most promising smart materials. They can provide novel solution in several fields, for various applications (e.g. actuator, biomedical application, clamping systems, etc.). Among the commercially available Shape Memory Alloys, nickel–titanium (Ni–Ti and Ni–Ti based) ones are outstanding due to their excellent performance and reliability. In addition to its strain recovery, Ni–Ti is attractive for medical applications due to its biocompatibility, corrosion resistance and fatigue behavior.

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