| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Presentation Title |
Low Temperature Forging of High Strength CP Ti |
| Author(s) |
Andrzej Rosochowski, Malgorzata Rosochowska, Saeed Tamimi, Jacob Roszak |
| On-Site Speaker (Planned) |
Andrzej Rosochowski |
| Abstract Scope |
This research investigates feasibility of replacing expensive Ti-6Al-4V ELI often forged into medical implants at 940°C with equally strong but more biocompatible and cheaper CP Ti forged at much lower temperature of 300°C. The increased strength of CP Ti billets can be achieved by changing their structure into ultrafine grained (UFG) structure by a simple shear severe plastic deformation (SPD) process through so-called grain boundary strengthening. This effect, however, has its limits so further strengthening is achieved by increasing density of dislocations by pure shear generated in a low temperature forging operation. Two different forms of CP Ti, annealed with CG structure and subjected to SPD resulting in UFG structure, are used. The forging trials of a cylindrical component are carried out on a screw press with high strain rate and a hydraulic press with much lower strain rate. The resulting microstructure and properties are compared for different experimental runs. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |