Novel alloys for the implants of the future based on nanocrystalline Ti-13N-13Z (TNZ) show outstanding medical properties, such as improved bone healing and inhibited bacterial growth to prevent infection. This nanostructuring can be achieved through ultra-high deformation (severe-plastic deformation) with subsequent recrystallisation.

At the PtU Institute, the relevant forming process parameters were set to a continuous process (Equal-Channel-Angular-Swaging). However, forging processes play a major role in the manufacture of large implants (e.g. hip implants).

In this thesis, the optimum process strategy is to be developed using an example experiment with selected process parameters (such as degree of forming, strain rate, temperature). For this purpose, a cylinder upsetting simulation is created on the one hand and real tests are carried out on the other. The samples produced are analysed macroscopically and microscopically. The material produced is compared with the original material in terms of various material properties.

Research method

Experimental, numerical