| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Determination of the Influence of the Scale of Alpha Plates on the Mechanical Properties of Metastable Beta Titanium Alloys |
| Author(s) |
Brian Welk, Gopal Viswanathan, Yufeng Zheng, Hamish L. Fraser |
| On-Site Speaker (Planned) |
Hamish L. Fraser |
| Abstract Scope |
Metastable beta titanium alloys may be heat-treated to produce variations in the scale of the precipitated alpha phase from “refined” to “super-refined”. The fineness of these distributions may lead to very high strengths. However, samples with very high strengths exhibit little or no ductility. To understand this lack of ductility, a detailed determination of the active deformation mechanisms has been performed. The study has made use of the alloy system Ti64+xFe, where x has been varied from x=2 to x=4.5. Samples have been heat-treated to effect various degrees of alpha refinement, and samples of these heat-treated alloys have been deformed using nano-indentation, and/or deformed in tension at room temperature. The deformation substructure has been characterized using transmission electron microscopy, and the results of these experiments have been used to determine the active deformation mechanisms. These have been used to develop an understanding of the lack of ductility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, Characterization |