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A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates
| File | Description | Size | Format | |
|---|---|---|---|---|
 A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates_Accepted.pdf | Accepted version | 17.33 MB | Adobe PDF | View/Open |
| Title: | A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates |
| Authors: | Knowles, A Reynolds, L Vorontsov, V Dye, D |
| Item Type: | Journal Article |
| Abstract: | A nickel based superalloy has been designed where the fcc γ Ni matrix is reinforced by two different ordered-fcc intermetallic compounds, L12 Ni3Al and D022 Ni3V. Primary ageing at 900–1000 °C precipitated spherical L12 Ni3Al, whose volume fraction and size were controlled by altering the ageing temperature and time. Secondary ageing at 700 °C for 1–1000 h precipitated D022 Ni3V laths. The duplex precipitation increased hardness by up to 85 HV, with ∼ 500 MPa compressive proof strength maintained at 800 °C. Electron microscopy studied the Ni3Al precipitation and confirmed the form of the secondary Ni3V precipitates and their long term stability. |
| Issue Date: | 15-Mar-2019 |
| Date of Acceptance: | 9-Dec-2018 |
| URI: | http://hdl.handle.net/10044/1/66706 |
| DOI: | https://dx.doi.org/10.1016/j.scriptamat.2018.12.013 |
| ISSN: | 1359-6462 |
| Publisher: | Elsevier |
| Start Page: | 472 |
| End Page: | 476 |
| Journal / Book Title: | Scripta Materialia |
| Volume: | 162 |
| Copyright Statement: | © 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Sponsor/Funder: | Engineering & Physical Science Research Council (E Engineering & Physical Science Research Council (E Engineering & Physical Science Research Council (E |
| Funder's Grant Number: | RG75356 138874 N/A |
| Keywords: | 0912 Materials Engineering 0913 Mechanical Engineering Materials |
| Publication Status: | Published |
| Online Publication Date: | 2018-12-21 |
| Appears in Collections: | Materials Faculty of Natural Sciences Faculty of Engineering |