| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Recycling if Ti and Ti6Al4V chips by consolidation with severe plastic deformation |
| Author(s) |
Erhard Schafler, Peter Cengeri, Jelena Horky, Stefan Noisternig, Laszlo Sajti, Bartosz Sulkowski, Grzegorz Boczkal, Michael Zehetbauer |
| On-Site Speaker (Planned) |
Erhard Schafler |
| Abstract Scope |
The machining of Titanium yields large amounts of waste in the form of chips. Conventional recycling by remelting the chips requires a lot of energy. It can be saved to a large extent by application of SPD (Severe Plastic Deformation) which uses Titanium chips as starting raw material.
In the present work two Severe Plastic Deformation (SPD) methods - Equal Channel Angular Pressing (ECAP) and High Pressure Torsion (HPT) - were used for recycling of chips. For successful consolidation, efficient cleaning of the chips was crucial. To check the quality of the consolidated materials, results of mechanical testing, texture analysis, and of optical and electron microscopy were compared with those of the bulk counterparts.
It is concluded that full consolidation of chips using SPD is possible at temperatures which are significantly lower than those of melting and sintering temperatures. Still, the enhancement of pressure and temperature remain advantageous for consolidation. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Recycling and Secondary Recovery, Solidification, Titanium |