| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Elucidating Microstructural Evolution Under Extreme Environments
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| Presentation Title |
Microstructural Evolution of Ion Irradiated Commercially Pure Titanium |
| Author(s) |
Aida Amroussia, Carl J. Boehlert, F. Pellemoine, W. Mittig, M. Li, W.-Y. Chen |
| On-Site Speaker (Planned) |
Carl J. Boehlert |
| Abstract Scope |
Radiation-induced defects, caused by heavy ion radiation damage of commercially pure (CP) titanium (Ti), was analyzed. In particular, prismatic <a> dislocation loops during in situ TEM irradiations with 1 MeV Kr ions at 30 ℃, 360 ℃ and 430 ℃ were quantified. At doses between 0.05 dpa and 0.06 dpa, the <a> loops were homogeneously distributed throughout the grains. As the irradiation dose increased, these loops unfaulted and their size increased. The radiation-induced dislocation loop evolution was also investigated through ex situ 4 MeV Ar beams at different temperatures. The dominant mechanism for dislocation loop growth was loop coalescence. Both <a>- and c-component loops exhibited an increase in size and density with increased irradiation dose and temperature. The C-component loops were observed only after reaching a threshold incubation dose (TID). These loops initiated at lower doses compared to previous observations in Zr, and the TID decreased with increasing temperature. |
| Proceedings Inclusion? |
Planned: |