| Issue |
MATEC Web Conf.
Volume 321, 2020
The 14th World Conference on Titanium (Ti 2019)
|
|
|---|---|---|
| Article Number | 05017 | |
| Number of page(s) | 6 | |
| Section | Biomedical and Healthcare Applications | |
| DOI | https://doi.org/10.1051/matecconf/202032105017 | |
| Published online | 12 October 2020 | |
Phase transformations during continuous heating: effect of Sn addition on the microstructure of Ti-13Mo alloy
School of Mechanical Engineering, University of Campinas, Campinas, SP, Brazil
The addition of Sn to the Ti-Mo system can diminish the formation of ω phase and slow down the precipitation kinetics of α phase due to the low atomic diffusivity of Sn atoms in Ti. To explore α phase precipitation in Ti-13Mo and Ti-13Mo-6Sn (wt.%) alloys, differential scanning calorimetry (DSC) was applied using different heating rates to determine ω phase dissolution, α phase precipitation and β transus temperatures. The DSC results were then used to determine the aging heat treatment temperatures. Samples were heat-treated at 600 °C for 1 h and 24 h to examine microstructure features. The addition of Sn to Ti-13Mo alloy was found to increase the β phase lattice parameter, increasing β transus temperatures and resulting in microstructures with heterogeneous and coarser α phase precipitation.
© The Authors, published by EDP Sciences, 2020
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