Effect of the severe plastic deformation by ECAP on microstructure and phase transformations in Ti-15Mo alloy

0533906 - FZÚ 2021 RIV NL eng J - Journal Article
Bartha, K. - Veverková, A. - Stráský, J. - Veselý, J. - Minárik, P. - Correa, Cinthia Antunes - Polyakova, V. - Semenova, I. - Janeček, M.
Effect of the severe plastic deformation by ECAP on microstructure and phase transformations in Ti-15Mo alloy.
Materials Today Communications. Roč. 22, Mar (2020), s. 1-10, č. článku 100811. ISSN 2352-4928. E-ISSN 2352-4928
Institutional support: RVO:68378271
Keywords : metastable β titanium alloy, * equal channel angular pressing * α phase precipitation * microstructure * transmission Kikuchi diffraction * phase composition
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.383, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.mtcomm.2019.100811

Ti-15Mo alloy in a metastable β solution treated condition was processed by equal channel angular pressing (ECAP) at an elevated temperature of 250 °C. The resulting microstructure is highly deformed, contains twins and shear bands, but is not ultra-fine grained. Both the initial solution treated material and the material after ECAP were subjected to ageing at 400 °C and 500 °C in order to study the effect of deformation on phase transformations, namely the α phase precipitation. The phase composition was studied by X-ray diffraction measurement, the microstructure was investigated using con ventional EBSD and an advanced method of transmission Kikuchi diffraction (TKD).

Permanent Link: http://hdl.handle.net/11104/0312136