Structure Of Shape Memory Alloys
Main uses: fishing line,super elastic memory alloy mobile phone antennas,optical glasses frames, Bluetooth headsets, medical.
Application areas: used in super elastic memory alloy mobile phone antennas, fishing hooks, fishing rods, children’s toy antennas, optical glasses frames, Bluetooth headsets, earhook, medical. With the development of the times, it has been gradually used in women’s clothing circle, as a scientific research material, frequently appeared in various laboratories of science and technology materials laboratory
Brand: TiNi-01 Phase transition temperature: 20 ℃ -40 ℃
TiNi-02 phase transition temperature: 45 ℃ -90 ℃
TiNi-SS phase transition temperature: 5 ℃ -15 ℃
TiNi-03 phase transition temperature: <5 ℃
TiNi-YY phase transition temperature: 33 ℃ ± 3 ℃
Phase transition temperature of TiNiCU: As－Ms≤5 ℃
TiNiNb phase transition temperature: As-Ms <150 ℃ Physical properties of nickel-titanium memory wire: tensile strength: 850 MPa yield strength; 195-690 MPa; elongation: 25-50%
Nitinol memory wire chemical composition: Ni: 55.4% -56.2% C≤0.07 H≤0.005 O≤0.050 N: ≤0.05
According to its physical properties, memory alloy wire can be divided into the following categories:
(1) One-way memory effect
The shape memory alloy deforms at a lower temperature, and after heating it can restore the shape before deformation. This shape memory phenomenon that exists only during heating is called the one-way memory effect.
(2) Two-way memory effect
Some alloys restore the shape of the high-temperature phase when heated, and can restore the shape of the low-temperature phase when cooled, which is called the double-pass memory effect.
(3) Global memory effect
The shape of the high-temperature phase is restored when heated, and it becomes the shape of the low-temperature phase with the same shape and the opposite orientation when cooled, which is called the global memory effect.