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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.
Shape Memory Alloy Type
|Two-way Shape Memory||Alloy that restores high-temperature shape when heated, and restores low-temperature shape when cooled|
|One-way Shape Memory||Alloy deforms at sub-transformation temperatures and restores pre-deformation shape when heated, demonstrating unidirectional memory behavior.|
Shape Memory Effect
"Shape Memory" describes the restoration of the original shape of a plastically deformed sample upon heating.
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
Nitinol products we provide:
Besides Ti-Ni memory alloy, ETI can also provide TiNiCu and TiNiNb shape memory alloys.
Nitinol Threaded Rod
We provide nitinol threaded rod (nitinol bolts, Ti-Ni alloy rods) with custom Af point and size, even the high temperature titanium nickel alloy rods with high hardness.
ETI manufactures nitinol wire (Titanium nickel alloy wire, shape memory nitinol wire, superelastic alloy wire) with various Af temperature that are used in all fields.
Nitinol Fishing Wire
Nitinol fishing wire is a superelastic alloy wire (even at low temperature) which can be stretched over ten times the length of ordinary steel leader without permanent deformation.
Edgetech Industries LLC manufactures nitinol rod (shape memory rods & superelastic alloy rods) from various grades of nickel titanium alloys.
ETI offers Nitinol foil (titanium nickel alloy foil, shape memory alloy foils, superelastic alloy foils) with 0.002" thinnest thickness, specification ASTM F2063.
Edgetech Ind is a reliable ntiinol sheet supplier. We offer nitinol sheets (titanium nickel alloy sheet, shape memory alloy sheet, superelastic sheets) with Cold-rolled, pickled and Mirror shiny surface.
ETI offers nitinol strip (titanium nickel alloy strips, shape memory alloy strips, superelastic strips) for special applications, enabling unusual design characteristics.
We provide nitinol springs (nickel titanium alloy spring, nitinol compressed spring，nitinol tension spring) with competitive price and various specifications.Two way shape memory spring is our specialty.
Shape Memory Parts & TiNiCu alloys
Nitinol (nickle titanium alloy) is used to make dental braces, spectacle frames and nitinol stents widely. We also provide other shape memory alloys: Ti-Ni-Cu Shape memory alloy, Ti-Ni-Nb shape memory alloys, etc.