Performance And Property of Nitinol- A Metal with Memory

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Nitinol It is made of shape memory alloy. This is a special metal alloy that, at a given temperature, can return to its original plastic shape.
Memory alloys have many other excellent qualities, such as corrosion resistance, high damping or super-elasticity, in addition to their unique memory function.

What is Nitinol Performance?
As its name implies, Nickel-Titanium Alloy Powder is a binary alloy powder that is composed of both nickel and titanium. The austenite phase, and the martensite phases are different due to changes in temperature or mechanical pressure. The order of phase transformation in cooling nickel-titanium is parent phase – R phase – martensite. The R phase has a rhombohedral shape, while the austenite cubes become hard and brittle when temperatures are high or when a load is removed. The shape of the material is relatively stable. The martensite is the state of a material at relatively low temperatures, or under loads. It is a hexagonal-shaped material that is ductile and repeatable. It’s also unstable and easily bent.

What are the special properties of Nitinol?
Shape memory: Shape memory occurs when the parent phase (a shape) is cooled to a temperature lower than Mf and then heated back up to Af. The material will automatically revert to its parent phase.

Superelasticity: The term superelasticity describes the phenomenon in which a sample is strained beyond its elastic limit strain when subjected to external forces, but the strain automatically returns after the force has been removed.
Sensitivity of orthodontic wires to temperature changes: The orthodontic power and strength of CoCr orthopedic wire and stainless steel wire are not affected by temperature changes.

Corrosion resistance According to recent studies, the corrosion resistance between stainless steel and nickel-titanium is almost identical.

Anti-toxicity: Nitinol has a unique chemical makeup, it’s an atomic-alloy, like Nitinol. Nitinol contains about 50% nickel. Nickel has been known to be carcinogenic, causing cancer.

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 nickel-titanium alloy wires.
Good shock-absorbing characteristics: The greater vibrations of the archwire due to chewing or night molars will cause more damage to the roots and periodontal tissues.

Tech Co., Ltd. is a professional Nitinol Powder We have over 12 year experience in research and development of chemical products. You can contact us for Nitinol Powder. Contact us Send an inquiry.