|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Study of Phase Transitions in Metastable β-Ti Alloy by Various In-situ Techniques
||Pavel Zháňal, Petr Harcuba, Jana Šmilauerová, Lukáš Horák, Jozef Veselý, Michal Hájek, Miloš Janeček
|On-Site Speaker (Planned)
Phase transformation occuring in metastable β-Ti alloy (Ti-15Mo) were studied in-situ during heating. Several techniques, such as electrical resistance measurement and X-ray diffraction accompanied by post-mortem TEM analysis, were employed. The material in the initial (solution treated) codition cosists of β phase matrix and ω particles. Heating at low temperatures results in decrease of volume fraction of ω phase, followed by its increase at temperatures above 200 °C up to about 400 °C. Further heating results in decrease of the volume fraction of ω phase, however, ω particles coarse. Synchrotron X-ray diffraction of Ti-15Mo single crystal proved that ω particles revert back to β phase at 560 °C, therefore they are not direct precursors of α precipitation during continuous heating.
||Planned: Supplemental Proceedings volume