About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-Grained and Heterostructured Materials (UFGH) XIV
|
| Presentation Title |
Microstructure and texture evolution during multi-Axial forging of Titanium at ambient temperature |
| Author(s) |
Sujit Kumar Nayak, Somjeet Biswas |
| On-Site Speaker (Planned) |
Sujit Kumar Nayak |
| Abstract Scope |
Multi-Axial Forging (MAF) is a severe plastic deformation (SPD) technique used to refine grain structure and enhance material strength. In this study, α-Titanium (Ti) underwent one cycle (3 passes) of MAF at ambient temperature, imposing a cumulative strain of ~1.5. Scanning electron microscopy with EBSD revealed a significant grain refinement from 130 μm to ~0.9 μm. The mechanical properties improved markedly, achieving a tensile strength of 810 MPa and ductility of 18.5%. Grain refinement was attributed to twin-induced grain subdivision, which gradually transitioned to slip-based deformation and subgrain formation with continued passes. Additionally, the strain path change promoted the evolution of low-angle to high-angle boundaries, increasing grain boundary misorientation. The enhanced mechanical properties were primarily due to the increased fraction of ultrafine grains and higher dislocation density, which together contributed to the superior strength–ductility balance. These results demonstrate MAF’s effectiveness in producing fine-grained, high-strength α-Ti at room temperature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, Characterization |