|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||New Insights into Oxygen-rich Alpha Titanium Alloys for Structural Applications
||Fabienne Amann, Régis Poulain, Stéphanie Delannoy, Ivan Guillot, Zachary Kloenne, Guillou Raphaëlle, Couzinié Jean-Philippe, Dominique Thiaudière, Jean-Luc Béchade, Lartigue Sylvie, Emmanuel Clouet, Hamish Fraser, Frederic Prima
|On-Site Speaker (Planned)
Among the various significant questions affecting titanium metallurgy, the effect of interstitials, more specifically oxygen, on the (mechanical) properties of titanium alloys remains one of the most critical issues. For decades, oxygen has been considered as a detrimental element, leading to drastic embrittlement. However, there is still an important lack of knowledge on underlying mechanisms regarding this effect.
This talk proposes a new insight on these facts, based on an extensive work performed on Ti-Zr-O alloys displaying high oxygen concentration (between 0.4 and 1 wt%). Two different aspects of great interest are discussed: (1) the determination of the atomic scale structure of Ti-O alloys, as a function of the chemical composition, with special attention to possible local ordering or local oxygen-driven structural modification. (2) The impact of oxygen content on: (a) the macroscopical properties (resistance/ductility trade-off) and: (b) the operative deformation mechanisms, at room temperature.
||Titanium, Characterization, Mechanical Properties