Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST)
File(s)
Published version
Author(s)
calvert, Emma
Knowles, Alexander
Pope, J
Dye, D
Jackson, Martin
Type
Journal Article
Abstract
To increase the strength of titanium alloys beyond that achievable with α-β microstructures, alternative reinforcing methods are necessary. Here, field-assisted sintering technology (FAST) has been used to produce a novel Ti-5Al-5Mo-5V-3Cr (Ti-5553) metal-matrix-composite (MMC) reinforced with 0-25 wt.% of a ∼2 GPa yield strength TiFeMo alloy strengthened by ordered body-centred cubic intermetallic and ω phases. The interdiffusion region between Ti-5553 and TiFeMo particles was studied by modelling, electron microscopy, and nanoindentation to examine the effect of graded composition on mechanical properties and formation of α, intermetallic, and ω phases, which resulted in a > 200 MPa strengthening benefit over unreinforced Ti-5553.
Date Issued
2019-01-15
Date Acceptance
2018-08-19
Citation
Scripta Materialia, 2019, 159, pp.51-57
ISSN
1359-6462
Publisher
Elsevier
Start Page
51
End Page
57
Journal / Book Title
Scripta Materialia
Volume
159
Copyright Statement
© 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Sponsor
Engineering & Physical Science Research Council (E
Engineering & Physical Science Research Council (E
Grant Number
138874
N/A
Subjects
0912 Materials Engineering
0913 Mechanical Engineering
Materials
Publication Status
Published
Date Publish Online
2018-09-13