About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Deformation mechanisms in β and α phases during high-strain-rate compression of Ti-6Al-4V in mill-annealed condition |
| Author(s) |
Abhishek Sharma, Tirthesh Ingale, Sudip Kumar Sarkar, Ravi Sankar Haridas, Advika Chesetti, Rajarshi Banerjee |
| On-Site Speaker (Planned) |
Abhishek Sharma |
| Abstract Scope |
This study reports the dynamic deformation mechanisms operating within commercial mill-annealed Ti-6Al-4V (wt.%) alloy at room-temperature. The β phase in this microstructure deforms via transformation induced plasticity (TRIP), whereas based on its actual composition on a Bond-Order vs Mean d orbital energy level plot (plot), dislocation plasticity is expected to operate. The α phase in this case displays significant dislocation activity with no signature of deformation twinning. The complete suppression of twinning appears to result because of aluminum strongly deviating from a random distribution within the α phase which was identified via atom probe tomography (APT) based cluster analysis. This non-random aluminum distribution is possibly a result of the final cooling step, subsequent to mill-annealing. This understanding of the underlying micro-mechanisms pertaining to the constituent phases will help better understand the strain-partitioning and interfacial incompatibility build-up during dynamic deformation, eventually helping to suppress premature failure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, Phase Transformations |