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

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...

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Veröffentlicht in:Materials 2019-10, Vol.12 (21), p.3570
Hauptverfasser: Zháňal, Pavel, Harcuba, Petr, Stráský, Josef, Šmilauerová, Jana, Beran, Přemysl, Hansen, Thomas C., Seiner, Hanuš, Janeček, Miloš
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container_issue 21
container_start_page 3570
container_title Materials
container_volume 12
creator Zháňal, Pavel
Harcuba, Petr
Stráský, Josef
Šmilauerová, Jana
Beran, Přemysl
Hansen, Thomas C.
Seiner, Hanuš
Janeček, Miloš
description 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.
doi_str_mv 10.3390/ma12213570
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; PubMed Central; Free Full-Text Journals in Chemistry
subjects Aerospace industry
Cooling
Experiments
Heat
Heat treatment
Heating rate
High temperature
Lattice parameters
Mechanical properties
Metal fatigue
Neutron diffraction
Phases
Thermal transformations
Titanium alloys
Titanium base alloys
title Transformation Pathway upon Heating of Metastable β Titanium Alloy Ti-15Mo Investigated by Neutron Diffraction
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