Nickel Titanium Alloys Sheet

Nickel Titanium Alloys Sheets are made from Nickel-titanium alloys, which is also known as Nitinol, which is a group of materials known for their unique properties, such as shape memory effect (SME) and superelasticity.

Nickel Titanium Alloys Sheet is processed through processes such as rolling or hammering the alloy into thin, flat shapes.

Composition of Nickel-Titanium Alloys Sheet

Nickel-Titanium Alloys: Typically composed of approximately 45-55% nickel and the balance titanium, with possible additions of other elements like vanadium, niobium, or molybdenum to enhance specific properties.

Nickel-titanium alloy plate is a functional metal plate that is "lightweight, highly elastic, and programmable in shape": through composition-heat treatment, the "memory trigger temperature" can be set arbitrarily within -10 °C to 120 °C, and it has the three advantages of superelasticity, fatigue resistance, and biocompatibility. It has covered a wide range of scenarios from medical care to aviation to consumer electronics.

1. Medical Devices: Nickel Titanium Alloys Sheet can be used to create stents that are inserted into blood vessels and then expanded to maintain vessel patency. The sheets can also be used in medical instruments that require a flexible yet strong material.

2. Dental Applications: Nickel Titanium Alloys Sheet is used in orthodontics for wires that can apply a constant force over time, helping to move teeth more efficiently.

3. Aerospace: In aerospace, Nickel Titanium Alloys Sheets are used in areas where components need to withstand extreme temperatures and maintain structural integrity.

4. Energy Systems: Due to their thermal expansion properties, Nickel Titanium Alloys Sheet can be used in actuators for energy systems like those found in concentrated solar power plants.

5. Mechanical Springs: Due to superelasticity, Nickel Titanium Alloys Sheet can be used to make springs that have a greater resilience than conventional materials.

Machining: Low temperature cooling (< 0 °C) inhibits martensitic stress induction and reduces tool wear.
Heat treatment: 450–550 °C aging 10–30 min, fine-tuning Af; vacuum or inert atmosphere to prevent oxidation.
Forming: stamping, deep drawing, and laser cutting are all possible; pre-deformation ≤ 6% to ensure memory recovery.
Assembly: Avoid contact with stainless steel at the same potential to produce galvanic corrosion; Ti or PEEK isolation is recommended.

Cleaning and disinfection: 75% alcohol + UV 30 min or low-temperature plasma sterilization is recommended before medical use.

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