Calvert, E.L., Knowles, A.J., Pope, J.J. et al. (2 more authors) (2019) Novel high strength titanium-titanium composites produced using field-assisted sintering technology (FAST). Scripta Materialia, 159. pp. 51-57. ISSN 1359-6462
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.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 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/). |
Keywords: | Titanium alloys; Metal matrix composite; Spark plasma sintering; Phase transformations; Omega |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 Oct 2018 13:16 |
Last Modified: | 22 Oct 2018 13:16 |
Published Version: | https://doi.org/10.1016/j.scriptamat.2018.08.036 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.scriptamat.2018.08.036 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137436 |