| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Metastable Phases and Phase Equilibria: Towards Designing the Next Generation of Alloys
|
| Presentation Title |
Composition, Processing, and Property Relationships in Fe and Al Modified Ti-12Cr Alloys |
| Author(s) |
Joann Ballor, Elizabeth Kautz, Bharat Gwalani, Masahiko Ikeda, Jane Howe, Takeshi Sunaoshi, Arun Devaraj, Carl Boehlert |
| On-Site Speaker (Planned) |
Joann Ballor |
| Abstract Scope |
Low-cost beta-stabilized Ti-12Cr-xFe-xAl(wt.%) alloys (where 0≤x≤3) were investigated to determine the effects of composition on microstructure and tensile properties. 400°C heat treatments were used to induce a phase transformation from the metastable BCC beta phase to the hexagonal omega phase and achieve higher tensile strengths. We investigated the impact of Fe and Al on the stability, volume fraction, distribution, and morphology of the omega and alpha phases in these alloys and their effect on mechanical performance under tensile loading conditions. Multi-modal characterization using optical microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, and atom probe tomography resulted in a thorough understanding of composition-microstructure-property relationships that can be used to further optimize mechanical properties in these alloys, and can provide insight for the design of other beta-omega Ti alloys. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |