C.L. Li
Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation
Li, C.L.; Murray, J.W.; Voisey, K.T.; Clare, A.T.; McCartney, D.G.
Authors
J.W. Murray
KATY VOISEY katy.voisey@nottingham.ac.uk
Associate Professor
ADAM CLARE adam.clare@nottingham.ac.uk
Professor of Manufacturing Engineering
D.G. McCartney
Abstract
Amorphous Al-Co-Ce alloys are of interest because of their resistance to corrosion, but high cooling rates are generally required to suppress the formation of crystalline phases. In this study, the surface of a bulk crystalline Al-Co-Ce alloy of a glass-forming composition was treated using large area electron beam (LAEB) irradiation. Scanning electron microscopy shows that, compared to the microstructure of the original crystalline material, the treated surface exhibits greatly improved microstructural and compositional uniformity. Glancing angle X-ray diffraction conducted on the surface of treated samples indicates the formation of the amorphous phase following 25 and 50 pulses at 35 kV cathode voltage. However, when the samples are treated with 100 and 150 pulses at 35 kV cathode voltage of electron beam irradiation, the treated layer comprises localised crystalline regions in an amorphous matrix. In addition, the formation of cracks in the treated layer is found to be localised around the Al8Co2Ce phase in the bulk material. Overall, crack length per unit area had no clear change with an increase in the number of pulses.
Citation
Li, C., Murray, J., Voisey, K., Clare, A., & McCartney, D. (2013). Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation. Applied Surface Science, 280, https://doi.org/10.1016/j.apsusc.2013.05.005
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2013 |
Deposit Date | Jul 23, 2014 |
Publicly Available Date | Jul 23, 2014 |
Journal | Applied Surface Science |
Print ISSN | 0169-4332 |
Electronic ISSN | 1873-5584 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 280 |
DOI | https://doi.org/10.1016/j.apsusc.2013.05.005 |
Keywords | Al-Co-Ce alloy, glass-forming, amorphous layer, electron beam irradiation |
Public URL | https://nottingham-repository.worktribe.com/output/1004791 |
Publisher URL | http://www.sciencedirect.com/science/article/pii/S0169433213008945 |
Additional Information | NOTICE: this is the author’s version of a work that was accepted for publication in Applied Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Surface Science, 280, (2013), doi: 10.1016/j.apsusc.2013.05.005 |
Files
LiLAEBamorphous_AlCoCeRevisedASSpapererep.pdf
(1.4 Mb)
PDF
You might also like
Inhibition of metal dusting of alloy 800H by laser surface melting
(2006)
Journal Article
Inhibition of metal dusting using thermal spray coatings and laser treatment
(2006)
Journal Article
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search