Transformation Pathway upon Heating of Metastable beta Titanium Alloy Ti-15Mo Investigated by Neutron Diffraction

0518767 - ÚJF 2020 RIV CH eng J - Článek v odborném periodiku
Zháňal, P. - Harcuba, P. - Stráský, J. - Šmilauerová, J. - Beran, Přemysl - Hansen, T. C. - Seiner, Hanuš - Janeček, M.
Transformation Pathway upon Heating of Metastable beta Titanium Alloy Ti-15Mo Investigated by Neutron Diffraction.
Materials. Roč. 12, č. 21 (2019), č. článku 3570. E-ISSN 1996-1944
Grant CEP: GA ČR GA17-04871S
Institucionální podpora: RVO:61388998 ; RVO:61389005
Klíčová slova: Ti alloys * alpha phase * beta phase * omega phase * phase transitions * neutron diffraction
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.); Materials engineering (UT-L)
Impakt faktor: 3.057, rok: 2019
Způsob publikování: Open access
https://doi.org/10.3390/ma12213570

A transformation pathway during thermal treatment of metastable beta Ti-15Mo alloy was investigated by in situ neutron diffraction. The evolution of individual phases alpha, beta, and omega was investigated during linear heating with two heating rates of 1.9 degrees C/min and 5 degrees C/min and during aging at 450 degrees C. The results showed that with a sufficient heating rate (5 degrees C/min in this case), the w phase dissolves before the alpha phase forms. On the other hand, for the slower heating rate of 1.9 degrees C/min, a small temperature interval of the coexistence of the alpha and omega phases was detected. Volume fractions and lattice parameters of all phases were also determined.
Trvalý link: http://hdl.handle.net/11104/0303824