@misc{ropars_structure_evolutions_2015, author={Ropars, L., Dehmas, M., Gourdet, S., Delfosse, J., Tricker, D., Aeby-Gautier, E.}, title={Structure evolutions in a Ti–6Al–4V matrix composite reinforced with TiB, characterised using high energy X-ray diffraction}, year={2015}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.jallcom.2014.10.203}, abstract = {A titanium matrix composite reinforced with TiB was produced using powder metallurgy. A Ti–6Al–4V alloy was chosen to be the matrix, and 12 wt.% of TiB2 was used as the boron source for the solid state formation of TiB. The TiB2 to TiB conversion reaction was studied using an in situ high energy X-ray diffraction technique while heat treating the composite. The TiB2 (space group: P6/mmm) converts into TiB-B27 (Pnma), via TiB-Bf (Cmcm). The metastable character of Bf is confirmed here; it is the first phase formed during the conversion and it progressively converts into B27 during elevated temperature heat treatment. A modification of the phase transformation kinetics in the matrix and of the composite β transus temperature (Tβ = 1275 °C) was also observed, mainly due to gas contamination and intensive work hardening as a result of the mechanical alloying process used to manufacture the material and to a modification of the matrix equilibria.}, note = {Online available at: \url{https://doi.org/10.1016/j.jallcom.2014.10.203} (DOI). Ropars, L.; Dehmas, M.; Gourdet, S.; Delfosse, J.; Tricker, D.; Aeby-Gautier, E.: Structure evolutions in a Ti–6Al–4V matrix composite reinforced with TiB, characterised using high energy X-ray diffraction. Journal of Alloys and Compounds. 2015. vol. 624, 179-188. DOI: 10.1016/j.jallcom.2014.10.203}}