Products Description
Nickel-titanium memory alloy wires are a specialized form of the nickel-titanium alloy, known for their unique properties such as shape memory effect (SME) and superelasticity. These wires are produced by drawing the alloy through a die to achieve the desired diameter and then heat-treating them to develop the necessary properties for their intended applications.
Composition of Nickel-titanium memory alloy wires
Nickel-titanium memory alloy wires are typically composed of approximately 55% nickel and 45% titanium. Other elements may be added to enhance specific properties, such as the temperature at which the phase transformation occurs.
Properties of Nickel-titanium memory alloy wires
- Shape Memory effect (SME) The wire can be deformed at a low temperature and then return to its original shape when heated to a specific temperature, known as the transformation temperature.
- Superelasticity At certain temperatures, the wire can be stretched significantly and return to its undeformed shape when the stress is removed, without permanent deformation.
- Corrosion resistanceNitinol wire has good corrosion resistance and is suitable for use in harsh environments.
- Biocompatibility These wires are often used in medical devices due to their compatibility with human tissue.
Applications of Nickel-Titanium Memory Alloy Wires
Medical Devices Wires are commonly used in medical applications, such as guide wires for catheters, stents, and orthodontic wires. The shape memory property allows for insertion of stents in a compressed state, which then expand to fit the contours of blood vessels or airways when heated to body temperature.
Actuators In robotics and mechanical systems, these wires can be used as actuators that change shape in response to temperature changes, providing movement or force.
Aerospace In the aerospace industry, wires can be used for thermal management systems, where they adjust their shape in response to temperature changes to control the flow of fluids or gases.
Recovery Tools In rescue and retrieval operations, wires can be used in devices that need to return to their original shape after being deformed.
Textile Applications Some innovative applications include embedding these wires in textiles to create responsive materials that change shape or fit based on temperature changes.
Specification of Nickel-titanium memory alloy wires
|
Standard |
ASTMF2063-12 |
|
wire size range |
Dia0.07mm-6mm |
|
Surface |
Light oxide/black/ polished |
|
AF range |
-20-100 Degree ℃ |
|
Density |
6.45g/cm3 |
|
Feature |
superelastic/ shape memory |
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