Ni-Ti surface with depressed nickel concentration for biomedical applications prepared by plasma immersion ion implantation

摘要

Ni-Ti is commonly used in biomedical applications. The shape memory effect and superelasticity of Ni-Ti assure the recovery of the original shape even after large deformations and the maintenance of a constant applied force in correspondence to significant displacements. However, the wide spectrum of applications in implantology imposes special requirements on the biocompatibility of Ni-Ti.