About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Development of as-processed novel titanium alloys exhibiting refined and uniform microstructures with very high strengths and an absence of residual stresses |
| Author(s) |
Brian Welk, Paraic O'Kelly, Gopal Viswanathan, Hamish Fraser |
| On-Site Speaker (Planned) |
Hamish Fraser |
| Abstract Scope |
Metastable β-titanium alloys may be solution heat-treated, quenched to room temperature, and then aged such that the α-phase nucleates on the ω-phase (formed during the quench). Because the ω-phase is present in a refined distribution, the subsequent α-phase is also formed on a very fine scale. This affords the possibility of producing titanium alloys with very high strengths. In this paper, the way in which this refined scale of precipitation may be effected in the metastable-β alloy Ti-6Al-4V-3Fe processed using hot isostatic pressing (HIP) followed by solution heat-treatment, quenching, and aging will be described. Not only is the distribution of the α-phase extremely refined, leading to yield strengths in excess of 1200 MPa, but because of the HIP process, the alloy exhibits a refined and uniform microstructure and an absence of residual stress. Interestingly, the alloy exhibits a useful degree of work hardening. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, |