Special Properties of Nitinol Powder

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email: brad@ihpa.net

Nitinol Shape memory alloys are special alloys that have good plasticity and can restore their original shape automatically at a given temperature.
Nitinol alloy is a form memory alloy. It is a unique alloy that is capable of restoring its original shape when heated to a certain degree. It has a higher expansion rate than conventional springs. The damping characteristics of Nitinol are also 10 times better than those of ordinary springs. It is one of the best functional materials.

The memory alloy is not only unique for its shape memory, but it also offers excellent wear resistance and corrosion resistance. It has high damping properties, too.

Nitinol Powder Special Properties

1. Shape memory properties (shape-memory) Shape memory is formed when a parent phase is cooled to below Mf temperatures from above Af temperatures to form a martensite. This martensite can then be deformed and heated up to below Af temperatures. When the reverse phase is changed, the material automatically returns to its parent phase. In reality, the Nitinol phase change process that causes shape memory is thermally induced.

2. Superelasticity When referring to superelasticity, it is the phenomenon in which a sample under the influence of an external force produces a much larger strain than its elastic limitstrain and that strain automatically recovers when the load has been removed. In comparison with shape memory, superelasticity does not involve thermal energy. Superelasticity, in a nutshell, means that stress doesn’t increase as strain increases if you stay within a specific deformation range. The superelasticity can be classified into linear and nonlinear. Nonlinear superelasticity is the resultant of the stress-induced martensitic phase transformation, and its reverse during loading and releasing in a certain range of temperatures above Af. The nonlinear pseudoelasticity is called phase-transformation pseudoelasticity. Nitinol’s phase-change pseudoelasticity can be as high as 8%.

3. Temperature in the Oral Cavity: The orthodontic power of CoCr alloy orthoptic wire and stainless steel wire is not affected by temperature in the Oral Cavity. The temperature in the oral cavity affects the corrective force of super-elastic Nickel-Titanium alloy orthodontic wire. When the amount deformation is constant. Corrective force increases with temperature. On one hand, the temperature can increase the speed of tooth movement. The temperature changes within the oral cavity will cause the blood to flow more freely, thereby nourishing the repair cells during tooth movement. Maintain vitality and normal functions. Orthodontists are unable to precisely measure or control orthodontic forces in the oral environment.

4. The corrosion resistance of Nickel-Titanium Wire is comparable to stainless steel wire.

5. Anti-toxicity – Nitinol, the shape memory metal, has a chemical composition that is unique. It’s an atomic alloy, similar to nickel-titanium and contains about 50% of nickel. Nickel is well known for its carcinogenic properties and can promote cancer. In normal conditions, the titanium oxide surface layer acts as barrier. This makes Ni-Ti alloy biocompatible. TiXOy, TixNiOy, and TixNiOy are surface layers that can inhibit Ni release.

6. Gentle orthodontic power: currently commercially used orthopedic wires include austenitic stainless steel wires, cobalt-chromium-nickel alloy wires, nickel-chromium alloy wires, Australian alloy wires, gold alloy wires and ss-titanium alloy wires. These orthodontic wires have been tested in tensile and three-point bend tests. Nitinol’s unloading platform is the lowest, flattest and lowest. It can therefore provide the most durable soft correction force.

7. Good shock-absorption properties: The greater vibration caused by the chewing and the night molars on the archwire, the more damage will be done to the periodontal tissue and the roots. Stainless steel wire has a larger vibration amplitude than super-elastic nickel-ti wire, according to the results of various arch wire attenuation studies. The initial vibratory amplitude for super-elastic NiTi wire is less than half of the vibrational amplitude for stainless steel arch wire. The health of your teeth is important. Traditional archwires, like stainless steel wires can increase root resorption.

Tech Co., Ltd. is a professional 3D printing Powders We are a chemical product supplier with 12 years of experience. We accept payment by Credit Card, T/T (West Union), Paypal and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for high-quality Nitinol Powder. Contact us Send an inquiry.