Effect of molybdenum content on phase transformations during continuous heating of metastable β Ti-Mo alloys
Abstract
Three metastable β titanium alloys with different molybdenum contents, Ti-12Mo, Ti-15Mo and Ti-18Mo (wt.%), were investigated to determine the influence of β-phase stability on phase transformations during continuous heating. Electrical resistance measurement, dilatometry and differential scanning calorimetry were performed during linear heating at 5 °C/min up to 750 °C. The in-situ experiments were complemented by electron microscopy observations of specimens heated to selected temperatures and subsequently water-quenched. All alloys exhibited a sequence involving partial dissolution of athermal ω phase, stabilization and growth of isothermal ω phase, subsequent ω dissolution and precipitation of α phase. Increasing molybdenum content progressively suppressed ω phase evolution and subsequent α precipitation and narrowed the temperature interval associated with ω-related transformations. The excellent agreement between electrical resistance measurements, DSC, dilatometry and electron microscopy enabled a consistent description of phase evolution during heating and demonstrated the benefits of combining complementary experimental techniques for investigation of complex transformation pathways in metastable β titanium alloys.
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BibTeX
@misc{kociscakova2026effect,
title = {{Effect of molybdenum content on phase transformations during continuous heating of metastable β Ti-Mo alloys}},
author = {Veronika Kočiščáková and Anna Veverková and Josef Stráský and Jana Šmilauerová and Kristína Bartha and Petr Harcuba and Dalibor Preisler and Jozef Veselý and Miloš Janeček},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.04858},
eprint = {2611.04858},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.04858},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Effect of molybdenum content on phase transformations during continuous heating of metastable β Ti-Mo alloys
AU - Veronika Kočiščáková
AU - Anna Veverková
AU - Josef Stráský
AU - Jana Šmilauerová
AU - Kristína Bartha
AU - Petr Harcuba
AU - Dalibor Preisler
AU - Jozef Veselý
AU - Miloš Janeček
PY - 2026
DA - 2026/11/03
PB - arXiv
DO - 10.48550/arxiv.2611.04858
UR - https://arxiv.org/abs/2611.04858
AB - Three metastable β titanium alloys with different molybdenum contents, Ti-12Mo, Ti-15Mo and Ti-18Mo (wt.%), were investigated to determine the influence of β-phase stability on phase transformations during continuous heating. Electrical resistance measurement, dilatometry and differential scanning calorimetry were performed during linear heating at 5 °C/min up to 750 °C. The in-situ experiments were complemented by electron microscopy observations of specimens heated to selected temperatures and subsequently water-quenched. All alloys exhibited a sequence involving partial dissolution of athermal ω phase, stabilization and growth of isothermal ω phase, subsequent ω dissolution and precipitation of α phase. Increasing molybdenum content progressively suppressed ω phase evolution and subsequent α precipitation and narrowed the temperature interval associated with ω-related transformations. The excellent agreement between electrical resistance measurements, DSC, dilatometry and electron microscopy enabled a consistent description of phase evolution during heating and demonstrated the benefits of combining complementary experimental techniques for investigation of complex transformation pathways in metastable β titanium alloys.
ER -