Isothermal omega kinetics in beta-titanium alloys
File(s)TiMo_Gum_ACV_Final.pdf (413.58 KB)
Accepted version
Author(s)
Coakley, J
Song, B-S
Dye, D
Ohnuma, M
Type
Journal Article
Abstract
Small angle X-ray and neutron scattering (SAXS/SANS) provide a non-localised quantitative analysis of nanoscale
ω
precipitates in Ti-7Mo at.% and Gum metal, a Ti-Nb based alloy. The nucleation and coarsening kinetics are more rapid
in the Ti-Nb alloy than the Ti-Mo alloy, presumably as Nb diffuses more rapidly than Mo in Ti. Therefore Mo-based
β
-Ti alloys are more stable during
ω
ageing than Nb-based
β
-Ti alloys. To the authors’ knowledge, this represents the
first publication quantifying
ω
size, volume fraction and element partitioning in Gum metal.
ω
precipitates in Ti-7Mo at.% and Gum metal, a Ti-Nb based alloy. The nucleation and coarsening kinetics are more rapid
in the Ti-Nb alloy than the Ti-Mo alloy, presumably as Nb diffuses more rapidly than Mo in Ti. Therefore Mo-based
β
-Ti alloys are more stable during
ω
ageing than Nb-based
β
-Ti alloys. To the authors’ knowledge, this represents the
first publication quantifying
ω
size, volume fraction and element partitioning in Gum metal.
Date Issued
2017-01-31
Date Acceptance
2017-01-10
Citation
Philosophical Magazine Letters, 2017, 97, pp.83-91
ISSN
0950-0839
Publisher
Taylor & Francis
Start Page
83
End Page
91
Journal / Book Title
Philosophical Magazine Letters
Volume
97
Copyright Statement
© 2017 Taylor & Francis. "This is an Author's Accepted Manuscript of an article published in [include the complete citation information for the final version of the article as published in the Philosophical Magazine Letters (Jan 2017), available online at: http://www.tandfonline.com/10.1080/09500839.2017.1282633
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Defence Science and Technology Laboratory (DSTL)
Engineering & Physical Science Research Council (EPSRC)
Rolls-Royce Plc
Grant Number
EP/H004882/1
DSTLX-1000068041
EP/L001748/1
See Further info
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Physics, Applied
Physics, Condensed Matter
Materials Science
Physics
Titanium alloys
X-ray diffraction
small angle scattering
ageing
omega phase transformation
X-RAY-SCATTERING
SMALL-ANGLE SCATTERING
MULTIFUNCTIONAL ALLOYS
MECHANICAL-PROPERTIES
TI-MO
PHASE
PRECIPITATION
TI-5AL-5MO-5V-3CR
GROWTH
ALPHA
Materials
0204 Condensed Matter Physics
0912 Materials Engineering
0913 Mechanical Engineering
Publication Status
Published