Nitinol is an acronym for “NIckel TItanium Naval Ordnance Laboratory”.
Nitinol is the intermetallic phase NiTi with an ordered cubic crystal structure that differs from that of titanium and nickel and consists of about 55% nickel, the rest being titanium. The alloy can be used up to 650 °C, is corrosion-resistant and high-strength, but can be pseudoelastically deformed up to approx. 8%.
Because of the so-called memory effect, it is used in medical technology.
Properties: Density: 6400 kg/m³, Melting temperature: 1240-1328 °C, highly biocompatible
biomedical applications
  • orthopedic implants
  • catheters
  • stents
  • superelastic needles
  • intrauterine devices