| Issue |
MATEC Web Conf.
Volume 321, 2020
The 14th World Conference on Titanium (Ti 2019)
|
|
|---|---|---|
| Article Number | 12009 | |
| Number of page(s) | 7 | |
| Section | Microstructure Evolution | |
| DOI | https://doi.org/10.1051/matecconf/202032112009 | |
| Published online | 12 October 2020 | |
Observation of the microstructure of the metastable Ti15Mo alloy after ageing
Department of Physics of Materials, Charles University, Prague, Czech Republic
* corresponding author: email – janecek@met.mff.cuni.cz
Omega phase particles can be observed by conventional SEM. Metastable Ti15Mo alloy was annealed at 500 °C for 16 hours. During annealing, ω phase particles grew and got chemically stabilized by expelling Mo atoms. As the result, these ellipsoidal particles, approx. 100 nm long and 50 nm wide can be observed using back-scattered electrons signal in conventional SEM due to chemical contrast. TEM study proved that these particles indeed belong to ω phase. Co-existence of β, ω and α phases was observed. Thin α lamellae were observed along with distorted ω phase particles by TEM.
© The Authors, published by EDP Sciences, 2020
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