What is Nitinol wire used for?

Nitinol is used for making shape-memory actuator wire used for numerous industrial purposes. This wire is used for guidewires, stylets and orthodontic files. This wire is ideal for applications requiring high loading and unloading plateau-stresses as well as for eyeglass frames and cell phone antennas.

How much force can Nitinol generate?

Nitinol returns to its original shape with a pulling force of about 25,000 pounds per square inch.

Can Nitinol conduct electricity?

Conductive Nitinol Clad Wire This conductive Niti exhibits the same superelastic and kink resistance properties while also acting as a conductor. Other benefits of this composite clad wire combination are solderability and radiopacity enhancement.

How does Nitinol wire work?

Shape memory alloys, such as nickel titanium, undergo a phase transformation in their crystal structure when cooled from the stronger, high temperature form (austenite) to the weaker, low temperature form (martensite).

Is nitinol stronger than titanium?

Compared with the titanium nail, the Nitinol nail developed a lower contact force between the nail and canal; consequently the Nitinol nail’s ultimate force was also lower. The stainless steel nail provided higher structural stiffness than did the titanium nail in Kaiser’s study [30].

Is nitinol stronger than steel?

However, because the nitinol alloy is superelastic as well, it does not need to be heated for it to return back to its primary state. The metal is also extremely strong, though not quite as strong as steel [2]. However, unlike traditional metals like steel, the NiTi alloy is both strong and flexible [2].

Does titanium have memory?

Most metals with shape memory are alloys of either titanium and nickel, commonly called nitinol, or of copper, zinc and aluminum.

How strong is nickel titanium alloy?

4.4. 4.1 Ni-Ti Alloy

Property	Ni-Ti Alloy	Magnesium
Elastic modulus (GPa)	83 (austenitic phase) 28–41 (martensitic phase)	41–45
Yield strength (MPa)	195–690 (austenitic phase) 70–140 (martensitic phase)	65–100
Tensile strength (MPa)	895	207
Fracture toughness ( )	895	207

Who discovered Nitinol?

William Buehler and Frederick Wang first discovered the shape memory effect in a nickel-based titanium alloy ( Nitinol ) with pseudoelastic and superelasticity properties [6, 7].

Is nitinol MRI safe?

Nitinol is non-ferromagnetic, exhibiting no dislodgment and only slight heating during MRI.

How is Nitinol formed?

In general, forming of Nitinol components is done by thennal shape seuing using cold worked material.

Why is nitinol called a smart alloy?

The technical name for a smart alloy is a shape memory alloy (SMA). copper-zinc-aluminium and copper-aluminium-nickel. it keeps its new shape until it is heated. Nitinol frames can return to their original shape on warming.

Why is Nitinol difficult?

It is difficult to make Nitinol due to the exceptionally tight compositional control required and the high reactivity of titanium. Every atom of titanium that combines with oxygen or carbon, is an atom taken from the Nitinol lattice, thus shifting the transformation temperature lower.

Is Nitinol hard making?

It’s expensive and hard to machine, but Nitinol is perfect for applications that require one or more of its special qualities: superelasticity, shape memory, biocompatibility and fatigue resistance.

Does Nitinol have memory?

The most common memory metal is called NiTinol, consisting of equal parts of nickel and titanium. The table below displays alloys having shape memory effects. The memory transfer temperature is the temperature that the memory metal or alloy changes back to the original shape that it was before deformation.