In addition to its own basic properties, nickel titanium alloy also has a special performance, precisely because it has its special properties, and thus broaden its use. The special properties of nickel titanium alloys generally have the following points:

1. Shape memory property:
The shape memory is that the certain shape of the parent phase formed martensite when the Af temperature is cooling to below Mf temperature, the martensite is deformed below Mf temperature, after heating to Af temperature, with the reverse transformation, the material will automatically recover in the parent phase. In fact, the shape memory effect is a thermally induced phase transition process of nickel titanium alloys.
2. Superelasticity:
The so-called super elasticity refers to under the action of external force, the sample can produce strain, which is far greater than the elastic limit strain, the strain can be automatically restored when unloading phenomenon.
3. Corrosion resistance:
Studies have shown that the corrosion resistance of nickel titanium wire is similar to the stainless steel wire.
4. Anti toxicity:
Nickel titanium shape memory alloy is composed of special chemical composition, namely it is a kind of nickel titanium alloy, containing about 50% of nickel, and nickel has carcinogenic and cancer promoting effect. Under normal circumstances, the surface layer of titanium oxide can be seen as a barrier, so that Ni-Ti alloy has good biocompatibility, the surface layer of TiXOy and TixNiOy can inhibit the release of Ni.
5. Gentle correction:
The unloading curve of nickel titanium alloy is the lowest and the most flat, which means that it can provide the most lasting soft correction.
6. Good damping characteristics