About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Understanding the Effect of Al on Strain Rate Sensitivity in Ti Alloys |
| Author(s) |
Zachary T. Kloenne, Bemin Sheen, David Nowell, Fionn P.E. Dunne, David Dye |
| On-Site Speaker (Planned) |
Zachary T. Kloenne |
| Abstract Scope |
Most work concerned with dwell fatigue is focused on alloys containing 6 wt.% Al. Here, we study the effect of Al-content on the rate sensitivity properties (activation energy and activation volume) of prismatic and basal slip. Stress relaxation tests were performed on singly orientated micro-pillars of alloys with, nominally, 1 and 6 wt.% Al. Integrated crystal plasticity modelling was coupled with the experimental results to extract the slip-system specific properties in each alloy. A larger activation energy and activation volume was measured for prismatic slip in the low Al alloy. Interestingly, the basal system in the low Al showed a stronger strain rate sensitivity than the prismatic system, opposite the trend in Ti-64. The consequence of this on load shedding was probed through in-situ straining coupled with HRDIC and polycrystal CPFE simulations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Characterization, Other |