A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates
Knowles, Alexander J and Reynolds, Lucy and Vorontsov, Vassili A and Dye, David (2019) A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates. Scripta Materialia, 162. pp. 472-476. ISSN 1359-6462
|
Text (Knowles-etal-SM-2018-A-nickel-based-superalloy-reinforced-by-both)
Knowles_etal_SM_2018_A_nickel_based_superalloy_reinforced_by_both.pdf Accepted Author Manuscript License: ![]() Download (17MB)| Preview |
Abstract
A nickel based superalloy has been designed where the fcc γ Ni matrix is reinforced by two different ordered-fcc intermetallic compounds, γ' L12 Ni3Al and γ'' 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.
Creators(s): |
Knowles, Alexander J, Reynolds, Lucy, Vorontsov, Vassili A ![]() | Item type: | Article |
---|---|
ID code: | 66346 |
Keywords: | superalloy, precipitation, intermetallics, microstructure, mechanical properties, Engineering design, Materials Science(all), Condensed Matter Physics |
Subjects: | Technology > Engineering (General). Civil engineering (General) > Engineering design |
Department: | Faculty of Engineering > Design, Manufacture and Engineering Management |
Depositing user: | Pure Administrator |
Date deposited: | 12 Dec 2018 12:21 |
Last modified: | 02 Feb 2021 09:49 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/66346 |
Export data: |