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Open AccessArticle

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

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Department of Physics of Materials, Charles University, Ke Karlovu 5, 12116 Prague, Czech Republic
2
Material and Mechanical Properties, Research Centre Rez Ltd., Hlavni 130, 25068 Husinec-Rez, Czech Republic
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Nuclear Physics Institute v.v.i. ASCR, Hlavni 130, 25068 Husinec-Rez, Czech Republic
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European Spallation Source ERIC, Box 176, SE-22100 Lund, Sweden
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Institut Laue-Langevin, 71 avenue des Martyrs, 38000 Grenoble, France
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Institute of Thermomechanics, ASCR, Dolejskova 5, 18200 Prague, Czech Republic
*
Author to whom correspondence should be addressed.
Materials 2019, 12(21), 3570; https://doi.org/10.3390/ma12213570
Received: 10 October 2019 / Revised: 23 October 2019 / Accepted: 25 October 2019 / Published: 31 October 2019
(This article belongs to the Section Structure Analysis and Characterization)
A transformation pathway during thermal treatment of metastable β Ti-15Mo alloy was investigated by in situ neutron diffraction. The evolution of individual phases α , β , and ω was investigated during linear heating with two heating rates of 1.9 C / min and 5 C / min and during aging at 450 C . The results showed that with a sufficient heating rate (5 C / min in this case), the ω phase dissolves before the α phase forms. On the other hand, for the slower heating rate of 1.9 C / min , a small temperature interval of the coexistence of the α and ω phases was detected. Volume fractions and lattice parameters of all phases were also determined. View Full-Text
Keywords: Ti alloys; α phase; β phase; ω phase; phase transitions; neutron diffraction Ti alloys; α phase; β phase; ω phase; phase transitions; neutron diffraction
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MDPI and ACS Style

Zháňal, P.; Harcuba, P.; Stráský, J.; Šmilauerová, J.; Beran, P.; Hansen, T.C.; Seiner, H.; Janeček, M. Transformation Pathway upon Heating of Metastable β Titanium Alloy Ti-15Mo Investigated by Neutron Diffraction. Materials 2019, 12, 3570.

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