NiTi Alloy

NiTi alloy is an engineering alloy with a unique shape memory effect, also known as Nitinol alloy.
This alloy consists of nickel and titanium in near equal atomic weight proportions and has a melting point of 1310oC and a density of 6.45 g/cc. The crystal structure of NiTi alloys belongs to the orthorhombic crystalline system with complex structural features. This structure gives the material special properties such as shape memory and superelasticity. The shape memory effect refers to the ability of a material to return to its original shape when subjected to external forces or temperature changes, which makes NiTi alloys excellent for medical applications such as stents and implants.
The hyperelastic effect, on the other hand, refers to the ability of a material to undergo reversible elastic deformation and return to its original shape when subjected to external forces, which is important in engineering applications such as springs and valves. In addition, NiTi alloys have good biocompatibility and fatigue and corrosion resistance, which further extends their range of applications.