Overview of Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical
Titanium (Ti) is a chemical element with the atomic number 22 and is symbolized as Ti on the periodic table. It belongs to the transition metals group and is known for its low density, high strength-to-weight ratio, and exceptional corrosion resistance. Discovered in 1791 by William Gregor, titanium has become a vital material across numerous industries due to its unique combination of properties.
Feature of Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical
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Low Density and High Strength: Titanium is about 45% lighter than steel but possesses similar strength, making it ideal for applications where weight reduction is critical without compromising strength.
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Corrosion Resistance: It forms a passive oxide layer that protects the underlying metal from corrosive substances, including sea water and chlorine, making it highly resistant to corrosion.
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Biocompatibility: Titanium is well-tolerated by the human body and doesn’t cause adverse reactions, which is why it’s widely used in medical implants and surgical instruments.
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Heat Resistance: With a melting point of 1,668°C (3,034°F), titanium can withstand high temperatures, making it suitable for aerospace and automotive applications.
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Non-Magnetic and Non-Toxic: These properties make titanium ideal for applications in MRI machines and other sensitive electronic devices.
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Fatigue Resistance: Titanium demonstrates excellent resistance to metal fatigue, crucial in cyclic loading applications such as aircraft parts.
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(Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical )
Parameters of Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical
Titanium superelastic NiTi (Nickel-Titanium) or Nitinol is a popular shape memory alloy used in medical applications due to its unique properties, such as shape memory effect, superelasticity, and biocompatibility. Here are some key parameters for Nitinol flat wire typically used in medical devices:
1. Composition: The most common composition is around 50% Nickel (Ni) and 50% Titanium (Ti), although other compositions like 60/40 NiTi or 55/45 NiTi can also be found.
2. Diameter: Available in various sizes, typically ranging from 0.008″ (0.203 mm) to 0.020″ (0.51 mm) or even thicker for larger applications.
3. Shape Memory Effect (SME): When heated above its austenite transformation temperature (around 85-100°C for 60/40 NiTi), the wire changes shape and returns to its original form when cooled below the martensite transformation temperature (around -40°C to body temperature).
4. Superelasticity: NiTi exhibits a large strain-to-recovery ratio (up to 7%) when subjected to cyclic loading within its elastic limit, making it resistant to fatigue and deformation.
5. Elastic Modulus: Below its transformation temperatures, the material has an elastic modulus similar to that of stainless steel (around 160 GPa or 24,000 ksi).
6. Biocompatibility: NiTi is known for its excellent biocompatibility, which allows it to be implanted without causing significant tissue reactions.
7. Fatigue Life: Nitinol wires have a high fatigue resistance, making them suitable for long-term use in medical devices.
8. Temperature Stability: NiTi’s shape memory effect and superelasticity are stable over a wide range of temperatures, making it ideal for applications that require temperature control.
9. Recovery Time: The time taken for the material to return to its original shape after being deformed depends on factors like temperature and cooling rate; typically, it can take seconds to minutes.
10. Material Certifications: Medical-grade NiTi wires often come with certifications like ISO 13485, CE Marking, or FDA approval, ensuring they meet stringent quality and safety standards.
Please note that specific parameters may vary depending on the manufacturer and the intended application. It’s essential to consult the product specifications provided by the supplier for the most accurate information.
(Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical )
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(Titanium Superelastic Ni-Ti Nickel Titanium Wire Shape Memory Alloy Nitinol Flat Wire Medical )
