|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Coupling Advanced Characterization and Modeling Tools for Understanding Fundamental Phase Transformation Mechanisms: An MPMD Symposium in Honor of Hamish Fraser
||Effects of Ternary Element Additions on the Precipitation of α and ω Phases in Ti-Mo Alloys
||Mariana Gerardi de Mello, Camilo Fernandes Salvador, Kaio Niitsu Campo, Rubens Caram
|On-Site Speaker (Planned)
Applications of Ti alloys in medical, petrochemical and aerospace industries are mainly due to their improved mechanical behavior, high corrosion resistance and excellent biocompatibility. In Ti alloys, the use of specific processing conditions can lead to secondary phase precipitation into β phase matrix, which results in high mechanical strength combined with satisfactory ductility loss. Therefore, the aim of this work is to evaluate phase transformation mechanisms in Ti-Mo based ternary alloys and the relationships between heat treatment conditions and the resulting microstructures. In this regard, precipitation of α and ω phases were investigated in Ti-Mo, Ti-Mo-Fe, Ti-Mo-Al and Ti-Mo-Sn alloys. Results obtained suggest that addition of Fe to the Ti-Mo system accelerated diffusion based phase transformations, while Sn addition decelerated it. Finally, Al addition allowed α phase formation through pseudospinodal decomposition phase transformations.
||Planned: Supplemental Proceedings volume