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Introduction to the advantages of titanium nickel memory alloy wire

Introduction to the advantages of titanium nickel memory alloy wire

2025-10-15 10:22:00

The core advantages of titanium nickel memory alloy wire are its shape memory effect and superelasticity, which can restore the preset shape at specific temperatures and maintain excellent performance even after repeated deformation.



Nickel titanium memory alloy wire

Nickel titanium memory alloy wire


The advantages of titanium nickel memory alloy wire can be divided into the following categories:


1、 Core functional advantages


1. Shape memory effect: After high-temperature shaping, even if significant deformation occurs under external force, as long as it is heated to a specific "transformation temperature", it can accurately restore its initial shape, and this process can be repeated.


2. Super elasticity (pseudo elasticity): above the transition temperature, it can withstand elastic deformation far beyond that of ordinary metals (up to 8% -10%), and can be completely restored in an instant after the external force is removed, while ordinary metals (such as steel) will undergo permanent plastic deformation if the deformation exceeds 0.5%.



2、 Material performance advantages


  • Good biocompatibility: No significant toxicity or rejection reaction to human tissues, can be implanted in the body for a long time, suitable for the field of medical devices (such as orthopedic fixation, dental orthodontic wires).

  • Strong corrosion resistance: The surface is prone to forming a stable oxide film, which can resist corrosion from harsh environments such as body fluids, seawater, acid and alkali, and has a long service life.

  • High fatigue strength: Under repeated deformation and temperature cycling, it is not easy to break due to fatigue, suitable for scenarios that require long-term dynamic work (such as spacecraft antennas, intelligent valves).



3、 Application adaptation advantages


Sensitive response: responds quickly to temperature changes, the shape recovery process is controllable, and automated operation can be achieved through precise temperature control.

Lightweight structure: with a density lower than steel (about 6.45g/cm ³), it can reduce the overall weight of components while meeting strength requirements, making it suitable for weight sensitive fields such as aerospace and automotive.



4、 Product price situation


The price of titanium nickel memory alloy wire varies depending on factors such as specifications, quality, usage, and purchase quantity.


From the retail prices of procurement platforms, the prices of nickel titanium alloy flat wires on Taobao range from a few yuan to tens of yuan. For example, the sales of super elastic memory titanium alloy corrosion-resistant and non deformable medical nickel titanium alloy steel wire flat wire are priced at 5 yuan, while the memory alloy flat wire flat wire NITI is priced at 116 yuan. Super elastic nickel titanium alloy flat wire, originally priced at 48 yuan, with an estimated purchase price of 42.2 yuan after discounts.


From wholesale platforms such as Alibaba, the price of nickel titanium alloy memory steel wire is 661 yuan/kg for 1-9 kilograms, 656 yuan/kg for 10-99 kilograms, and 656 yuan/kg for 100 kilograms and above. Some nickel titanium alloy wires have higher prices, such as NiTi-02 super elastic alloy wire, which is priced between 1800-3900 yuan/kg.


Wuge Nickel Titanium Alloy Materials, the company's main products are nickel titanium high-temperature alloys (such as nickel titanium copper high-temperature alloys) and nickel titanium room temperature alloys. It is a supplier of nickel titanium alloy materials and wire and pipe materials, and has a great interest in the civilian application of nickel titanium alloys. We are looking for like-minded partners.