**4. Conclusions**

In this work, metastable β-Ti alloy Ti-15Mo was prepared by cryogenic milling and subsequent spark plasma sintering. Microhardness measurements and tensile tests were performed to determine mechanical properties of achieved materials.


**Author Contributions:** A.V. conducted most of the experiments and wrote majority of the manuscript. J.K. performed cryogenic milling and developed the procedure of powder visualization by SEM. K.B. conducted some of the SEM observations and contributed to the discussion of results, T.C. conducted spark plasma sintering of the powders. C.A.C. provided X-ray diffraction experiments. J.S. discussed achieved results and wrote part of the manuscript.

**Funding:** This research was funded by Czech Science Foundation, grant number 17-20700Y and by Grant Agency of Charles University (GAUK), project No. 20119.

**Acknowledgments:** The authors wish to acknowledge Beate Kutzner (TU Freiberg) for providing CGHE measurements.

**Conflicts of Interest:** The authors declare no conflict of interest.
