|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||A Novel High-strength Beta Titanium Alloy Reinforced by Nanoscale Intermetallic Precipitates
||Rosie Mellor, Nicholas Jones, Howard Stone
|On-Site Speaker (Planned)
Industrial applications of metastable beta titanium alloys have been steadily increasing due to their exceptional strength and high toughness. The vast majority of such alloys rely on alpha-phase strengthening, which requires multiple thermomechanical processing steps to achieve a suitable dispersion of precipitates. In this research, an alternative method of strengthening has been explored - the intragranular precipitation of an ordered intermetallic phase that exhibits a well-defined orientation relationship with the beta-matrix. Computational thermodynamics has been used to identify alloy compositions that may be fully solutioned at high temperatures before inducing precipitation at lower temperatures. In designing these alloys, attention has been focussed on more abundant elements to reduce cost and improve sustainability. These alloys exhibit an excellent strength-to-weight ratio.
Funding is acknowledged from the EPSRC and Rolls-Royce plc.
||Titanium, Phase Transformations, Other