Manufacturing ASTM2063 nickel titanium ingot has the following challenges:
The first is the composition control, to accurately control the proportion of nickel and titanium, small composition deviation may lead to performance does not meet the standard.
The second is the melting process, nickel-titanium alloy is prone to segregation during melting. That is, the distribution of alloying elements is uneven, which will affect the overall quality and performance consistency of the spindle.
In addition, hot processing, in the process of hot processing, the temperature range should be strictly controlled. Due to the characteristics of Nitinol such as phase transition temperature, it is very sensitive to hot working temperature, and inappropriate temperature will change the microstructure of the alloy, which will affect its shape memory effect and other key properties.

ASTM ensures the quality of nickel titanium plates by setting strict material composition requirements. It also defines precise mechanical performance criteria such as strength and elasticity. In addition, ASTM provides detailed test methods, such as chemical analysis and mechanical properties testing, to verify quality.

ASTM ensures the quality of ASTM F2063 Shape Memory Alloy Nitinol Plate through setting strict material composition requirements. It also defines precise mechanical property standards such as strength and elasticity. Additionally, ASTM provides detailed testing methods like chemical analysis and mechanical performance testing to verify the quality.

Medical devices like stents and orthopedic implants rely on nickel titanium plates that comply with ASTM F2063. Aerospace components such as engine parts and stabilizers also depend on them. In the automotive sector, these sheets are used for engine and suspension components. Electronic products, including some springs and connectors in electronic devices, also rely on this nickel-titanium plate.

- Chemical composition: Nominal nickel content is 54.5% - 57.0%.
- Physical: Has shape - memory and super - elastic characteristics.
- Mechanical: Good strength and toughness.
- Metallurgical: Controlled quality with limits on inclusions.

ASTM F2063 nitinol rods specifications typically cover chemical composition (with a nominal nickel content of 54.5% - 57.0%), physical properties like shape - memory and super elasticity, mechanical properties including strength and toughness, and metallurgical requirements such as limits on inclusions.

- Medical field: Used in vascular stents and orthodontic wires for its shape memory and super elastic properties. - Aerospace and electronics: Applied where reliable and high - performance materials are needed due to its consistent quality.
- Automotive: Can be used in components that require specific mechanical and physical properties.

- It comprehensively specifies chemical composition, physical and mechanical properties, and metallurgical requirements.
- It meets the needs of medical and other fields' applications.
- It's recognized by the industry and widely used.
- It promotes technical development and quality control.

Shape memory of nitiol flat wire is a material property.
Nitinol alloys (including flat wire shapes) have two different crystal structures at different temperatures. At higher temperature, it is the austenitic phase, which has a stable and symmetrical structure. At lower temperatures, it will be transformed into a martensitic phase, which is relatively soft and easy to deform.
When nickel titanium flat wire is processed into a certain shape at high temperature austenitic state, and then cooled to change it into martensitic phase and deformation. Once the temperature rises above the phase transition temperature, the martensitic phase reverses back into the austenitic phase, and the nickel titanium flat wire automatically returns to the original shape it was processed into in the austenitic state.

Application scenario: Medical treatment can be used for dental arch wire, root canal file, medical guide wire. Industry can be used for high-grade composite frames, antennas, fishing gear, jewelry and toys and other industries

The memory effect of nickel titanium wire is activated in the following ways:
Temperature change
- Heating activation: When the nickel titanium wire is heated above a specific phase transition temperature, its internal crystal structure will change to activate the memory effect and return to a pre-set shape, such as the heat-activated nickel-titanium wire in dental orthodontics, the doctor will heat it and bend it into a shape suitable for the patient's teeth, which can produce sustained corrective force at the oral temperature to correct the teeth.
- Cooling activation: Some Nitinol alloys also have shape memory effects activated at low temperatures, but their applications are relatively rare.

Shape memory nitinol ingot are typically produced by first melting and alloying nickel and titanium in a specific proportion. Then, the molten alloy is cast into ingots. After that, through hot - working processes such as forging and extrusion, and followed by cold - working like drawing and machining to get the final nickel - titanium rods with the desired shape and properties.