Lawal, J., Kiryukhantsev-Korneev, P., Matthews, A. et al. (1 more author) (2017) Mechanical properties and abrasive wear behaviour of Al-based PVD amorphous/nanostructured coatings. Surface and Coatings Technology, 310. pp. 59-69. ISSN 0257-8972
Abstract
This study examines the mechanical properties and wear characteristics of aluminium-based nanostructured coatings produced by magnetron sputtering in an argon/nitrogen plasma. Compositional analysis of AlNiTiSiB(N) coatings was carried out by glow discharge optical emission spectroscopy (GDOES). Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to study the structure of the coatings; hardnesses and elastic moduli were also determined. The abrasive wear behaviour of the coating-substrate system was studied using a slurry micro-abrasion wear test. Nitrogen-free (AlNiTiSiB) coatings were found to be surprisingly hard and wear resistant; however, nitrogen incorporation had a significant influence on mechanical properties and abrasion resistance, with increased hardness (from 8 to 15 GPa) and a significant reduction in wear coefficient – from 6 × 10− 3 mm3/Nm for a nitrogen-free coating (0B), to approximately 1.5 × 10− 3 mm3/Nm, for a coating deposited at 15 sccm nitrogen gas flow rate (15T) – being observed in the various AlNiTiSiB(N) coatings investigated. Several of the coatings were found to be comparable to convention ceramic PVD hard coatings (e.g. CrN) in terms of resistance to abrasion.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 Elsevier. This is an author produced version of a paper subsequently published in Surface and Coatings Technology. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | PVD nanostructured coatings; Al-based coatings; Abrasive wear; Mechanical properties |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) TS/H000658/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 03 Jan 2017 16:19 |
Last Modified: | 18 Dec 2017 01:38 |
Published Version: | https://doi.org/10.1016/j.surfcoat.2016.12.031 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.surfcoat.2016.12.031 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109896 |